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Minuzzi RK, Petry C, Souza Dos Santos F, Semmelmann AL, Bassols GF, Pereira-Lima JFS. The Role of Hypogonadism in the Body Composition of Obese Men in the Preoperative Period of Bariatric Surgery. Endocr Pract 2024; 30:551-557. [PMID: 38641213 DOI: 10.1016/j.eprac.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/21/2024]
Abstract
OBJECTIVE To describe clinical characteristics, hormonal profile and body composition of obese men in preoperative of bariatric surgery. METHODS Cross-sectional, population-based study. Patients evaluated from June 2019 to December 2021 in 2 obesity referral centers. Patients underwent clinical evaluation, androgen deficiency screening using Androgen Deficiency in the Aging Male questionnaire, hormonal profile and body composition assessment through body mass index (BMI), body fat percentage (FM-%) and mass (FM-kg) measured by electrical bioimpedance and dual energy x-ray absorptiometry. To characterize hypogonadism, 2 cut-off points were considered: TT <264 ng/dL and TT <164 ng/dL. RESULTS Thirty patients were included, mean age 35.6 ± 8.8 years, mean weight 129.4 ± 14.0 kg and mean BMI 42.3 ± 4.7 kg/m2. Dyslipidemia was the most prevalent comorbidity. Considering TT <264 ng/dL, 22 patients (73%) had hypogonadism. The mean TT in hypogonadal men was 198.9 + 68.7 ng/dL and in eugonadal men 357.0 + 59.5 ng/dl (P < .001). Using TT <164 ng/dL, 7 patients (23%) had hypogonadism. The mean TT in hypogonadal patients was 116.6 + 28.9 ng/dL and in eugonadal patients 279.0 + 75.0 ng/dL (P < .001). In Androgen Deficiency in the Aging Male questionnaire, 93.3% had positive screening, with no significant difference between groups. There was no statistically significant difference in body composition between groups when using TT <264 ng/dL as the hypogonadism cutoff. Considering hypogonadism TT <164 ng/dL, hypogonadal patients had significantly higher values of weight (139.0 × 126.5 kg P = .036), BMI (46.1 × 41.2 kg/m2P = .014), FM-% (48.0 × 42.8% P = .010) and FM-kg (66.3 × 53.9 kg P = .007) than eugonadal patients. CONCLUSION Hypogonadism was identified in at least 23% of patients. Considering TT below the lower limit of normality for characterization of hypogonadism, we identified a significant worsening in body composition parameters.
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Affiliation(s)
- Ricardo Kunde Minuzzi
- Graduate Program of Pathology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil.
| | - Carolina Petry
- Graduate Program of Pathology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Santa Casa of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Felipe Souza Dos Santos
- Graduate Program of Pathology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ana Lucia Semmelmann
- Clinoson Clinic, Diagnostic Imaging, Porto Alegre, Brazil; Radiologist, Head of the Densitometry and Body Composition Sector, Porto Alegre, Brazil
| | | | - Julia Fernanda Semmelmann Pereira-Lima
- Graduate Program of Pathology, Federal University of Health Sciences of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil; Santa Casa of Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
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Gao X, Li P, Wang G, Li W, Song Z, Zhu S, Zhu L. Effect of laparoscopic sleeve gastrectomy on male reproductive function in Chinese men with obesity: a prospective cohort study. Int J Surg 2024; 110:3373-3381. [PMID: 38477110 PMCID: PMC11175819 DOI: 10.1097/js9.0000000000001328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 03/03/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Obesity is a widely recognized global public health issue, and bariatric surgery has emerged as an effective intervention for alleviating obesity associated health complications. However, the impact of bariatric surgery on male reproductive function remains inconclusive in the literature. The current understanding of the impact of laparoscopic sleeve gastrectomy (LSG) on male reproductive function remains ambiguous, despite its status as the most commonly performed bariatric surgery. This prospective cohort study aimed to investigate the impact of LSG on erectile function and semen quality. PATIENTS AND METHODS A total of 34 obese patients were enrolled in this study and underwent LSG. Prior to the operation and at 3, 6, and 12 months postoperation, all participants were required to complete the International Index of Erectile Function-5 (IIEF-5) questionnaire and undergo a nocturnal erectile function test and semen quality analysis. RESULTS Within 12 months postoperation, BMI, blood lipids, and insulin resistance showed significant improvement. The IIEF-5 score increased significantly (18.88±5.97 vs. 23.78±3.19, P <0.05), and the frequency and duration of erections significantly improved compared to baseline. Sperm concentration, total motility, survival rate, and sperm morphology parameters exhibited a significant decline at 3 months but demonstrated a significant improvement at 6 and 12 months postoperation. At 12 months, sperm concentration was shown to be correlated with changes in zinc (r=0.25, P =0.033) as well as changes in testosterone (r=0.43, P =0.013). CONCLUSIONS LSG has beneficial effects on erectile function, despite a transient decline in semen quality at 3 months postoperatively, followed by a significant improvement at 12 months.
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Affiliation(s)
| | | | | | | | | | - Shaihong Zhu
- Department of Metabolic and Bariatric Surgery, The Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
| | - Liyong Zhu
- Department of Metabolic and Bariatric Surgery, The Third Xiangya Hospital of Central South University, Changsha, People’s Republic of China
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Papadimitriou K, Mousiolis AC, Mintziori G, Tarenidou C, Polyzos SA, Goulis DG. Hypogonadism and nonalcoholic fatty liver disease. Endocrine 2024:10.1007/s12020-024-03878-1. [PMID: 38771482 DOI: 10.1007/s12020-024-03878-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 05/12/2024] [Indexed: 05/22/2024]
Abstract
Nonalcoholic fatty liver disease (NAFLD), recently proposed to be renamed to metabolic dysfunction-associated steatotic liver disease (MASLD), is a major global public health concern, affecting approximately 25-30% of the adult population and possibly leading to cirrhosis, hepatocellular carcinoma, and liver transplantation. The liver is involved in the actions of sex steroids via their hepatic metabolism and production of the sex hormone-binding globulin (SHBG). Liver disease, including NAFLD, is associated with reproductive dysfunction in men and women, and the prevalence of NAFLD in patients with hypogonadism is considerable. A wide spectrum of possible pathophysiological mechanisms linking NAFLD and male/female hypogonadism has been investigated. As therapies targeting NAFLD may impact hypogonadism in men and women, and vice versa, treatments of the latter may affect NAFLD, and an insight into their pathophysiological pathways is imperative. This paper aims to elucidate the complex association between NAFLD and hypogonadism in men and women and discuss the therapeutic options and their impact on both conditions.
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Affiliation(s)
- Kasiani Papadimitriou
- Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Athanasios C Mousiolis
- Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Gesthimani Mintziori
- Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Stergios A Polyzos
- First Laboratory of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios G Goulis
- Unit of Reproductive Endocrinology, First Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Corona G, Rastrelli G, Sparano C, Vignozzi L, Sforza A, Maggi M. Advances in the treatment of functional male hypogonadism. Expert Rev Endocrinol Metab 2024; 19:163-177. [PMID: 38117229 DOI: 10.1080/17446651.2023.2296022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023]
Abstract
INTRODUCTION Functional hypogonadism is frequently found in obese men, particularly those with metabolic complications. Several possible therapeutic approaches could be considered. AREAS COVERED An extensive search on Medline, Embase, and Cochrane databases was performed to retrieve the available studies assessing the change of testosterone (T) and sexual function upon dieting or physical activity programs, as well as glucagon-like peptide 1 analogues. The role of lifestyle interventions associated with T replacement therapy (TRT) was also evaluated. The expert opinion provided here has been corroborated by meta-analyzing the results of the retrieved studies. EXPERT OPINION Current evidence supports the beneficial role of lifestyle modifications in increasing T and improving sexual function as a function of weight loss. While dieting programs are associated with greater effects in younger populations, physical exercise has major effects in older ones. Among the dieting programs, a very low-calorie ketogenic diet shows the best results; aerobic or endurance physical exercise perform similarly. The advantages of functional hypogonadism in lifestyle modifications are empowered by the association with TRT. Therefore, TRT may be a valuable complementary strategy to increase muscle mass and facilitate physical exercise while improving sexual symptoms, thus favoring the motivation and compliance for lifestyle interventions.
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Affiliation(s)
- Giovanni Corona
- Endocrinology Unit, Azienda Usl, Maggiore-Bellaria Hospital, Bologna, Italy
| | - Giulia Rastrelli
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Florence, Italy
| | - Clotilde Sparano
- Mario Serio" Department of Experimental and Clinical Biomedical Sciences, University of Florence, Endocrinology Unit, Florence, Italy
| | - Linda Vignozzi
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Florence, Italy
| | - Alessandra Sforza
- Endocrinology Unit, Azienda Usl, Maggiore-Bellaria Hospital, Bologna, Italy
| | - Mario Maggi
- Mario Serio" Department of Experimental and Clinical Biomedical Sciences, University of Florence, Endocrinology Unit, Florence, Italy
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Ken-Dror G, Fluck D, Fry CH, Han TS. Meta-analysis and construction of simple-to-use nomograms for approximating testosterone levels gained from weight loss in obese men. Andrology 2024; 12:297-315. [PMID: 37345263 DOI: 10.1111/andr.13484] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/13/2023] [Accepted: 06/17/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND Obesity-induced hypogonadism, which manifests as erectile dysfunction and a lack of libido, is a less visible and under-recognized obesity-related disorder in men. OBJECTIVE We examined the impact of weight loss on total (TT) and free testosterone (FT) levels, and constructed nomograms to provide an easy-to-use visual aid for clinicians. MATERIALS AND METHODS Meta-analysis was conducted using RevMan (v5.3) and expressed in standardized mean differences (SMD) for testosterone. Parallel-scale nomograms were constructed from baseline and target body mass index values to estimate the gain in testosterone. RESULTS In total, 44 studies were included, comprising 1,774 participants and 2,159 datasets, as some studies included several datasets at different time points. Weight loss was controlled by low calorie diet (LCD) in 19 studies (735 participants, 988 datasets), by bariatric surgery (BS) in 26 studies (1,039 participants, 1,171 datasets), and by both in one study. The median follow-up was 26 weeks (interquartile range = 12-52). The range of baseline mean age was 21-68 yr, BMI: 26.2-71.2 kg/m2 , TT: 7-20.2 nmol/L and FT: 140-583 pmol/L. TT levels increased after weight loss by LCD: SMD (95%CI) = 2.5 nmol/L (1.9-3.1) and by BS: SMD = 7.2 nmol/L (6.0-8.4); the combined TT gain was 4.8 nmol/L (3.9-5.6). FT levels increased after weight reduction by LCD: SMD = 19.9 pmol/L (7.3-32.5) and by BS: SMD = 58.0 pmol/L (44.3-71.7); the combined gain was 42.2 pmol/L (31.4-52.9). Greater amounts of total and free testosterone could be gained by weight loss in men with higher baseline BMI, or lower levels of SHBG, TT and FT, while gain in TT was relatively greater in older and FT in younger age. Age-stratified nomograms revealed that compared to older men (> 40 yr), younger men (≤ 40 yr) gained less TT but more FT for a given weight loss. DISCUSSION AND CONCLUSION Both TT and FT levels increased after weight loss, relatively greater with higher baseline BMI, or lower levels of SHBG, TT and FT. Nomograms constructed from a large number of participants with a wide range of BMI and testosterone values provide an evidence-based and simple-to-use tool in clinical practice.
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Affiliation(s)
- Gie Ken-Dror
- Institute of Cardiovascular Research, Royal Holloway, University of London, Egham, Surrey, UK
| | - David Fluck
- Department of Cardiology, Ashford and St Peter's NHS Foundation Trust, Chertsey, Surrey, UK
| | - Christopher Henry Fry
- School of Physiology, Pharmacology and Neuroscience, University of Bristol, Bristol, UK
| | - Thang Sieu Han
- Institute of Cardiovascular Research, Royal Holloway, University of London, Egham, Surrey, UK
- Department of Endocrinology, Ashford and St Peter's NHS Foundation Trust, Chertsey, Surrey, UK
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Ikehata Y, Hachiya T, Kobayashi T, Ide H, Horie S. Body composition and testosterone in men: a Mendelian randomization study. Front Endocrinol (Lausanne) 2023; 14:1277393. [PMID: 38089610 PMCID: PMC10711270 DOI: 10.3389/fendo.2023.1277393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Background Testosterone is an essential sex hormone that plays a vital role in the overall health and development of males. It is well known that obesity decreases testosterone levels, but it is difficult to determine the causal relationship between body composition and testosterone. Methods To investigate potential causal associations between body composition and testosterone levels by a first time application of Mendelian randomization methods. Exposure variables in men included body composition (fat mass, fat-free mass, and body mass index). In addition to whole body fat and fat-free mass, we examined fat and fat-free mass for each body part (e.g., trunk, left arm, right arm, left leg and right leg) as exposures. Instrumental variables were defined using genome-wide association study data from the UK Biobank. Outcome variables in men included testosterone levels (total testosterone [TT], bioavailable testosterone [BT], and sex hormone-binding globulin [SHBG]). A one-sample Mendelian randomization analysis of inverse-variance weighted and weighted median was performed. Results The number of genetic instruments for the 13 exposure traits related to body composition ranged from 156 to 540. Genetically predicted whole body fat mass was negatively associated with TT (β=-0.24, P=5.2×10-33), BT (β=-0.18, P=5.8×10-20) and SHBG (β=-0.06, P=8.0×10-9). Genetically predicted whole body fat-free mass was negatively associated with BT (β=-0.04, P=2.1×10-4), but not with TT and SHBG, after multiple testing corrections. When comparing the causal effect on testosterone levels, there was a consistent trend that the effect of fat mass was more potent than that of fat-free mass. There were no differences between body parts. Conclusion These results show that reducing fat mass may increase testosterone levels.
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Affiliation(s)
- Yoshihiro Ikehata
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Tsuyoshi Hachiya
- Department of Urology, Advanced informatics for genetic diseases, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Takuro Kobayashi
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Hisamitsu Ide
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Shigeo Horie
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
- Department of Urology, Advanced informatics for genetic diseases, Juntendo University, Graduate School of Medicine, Tokyo, Japan
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Ejigu BA, Tiruneh FN. The Link between Overweight/Obesity and Noncommunicable Diseases in Ethiopia: Evidences from Nationwide WHO STEPS Survey 2015. Int J Hypertens 2023; 2023:2199853. [PMID: 38023617 PMCID: PMC10667048 DOI: 10.1155/2023/2199853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/28/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Background Noncommunicable diseases (NCDs) are the leading cause of death worldwide. Each year, 15 million adults die from NCDs; more than 85% of these premature deaths occur in low- and middle-income nations. Evidence indicates that overweight and obesity are the main risk factors for NCDs. Although the literature indicates that the burden of NCDs is increasing in Ethiopia, no research has been conducted to demonstrate a link between overweight/obesity and NCDs. Therefore, the aim of this study is to examine the association between overweight/obesity and the common NCDs while adjusting for other important factors. Methods We analysed data from the 2015 Ethiopia WHO STEPS survey, which was conducted in 2015. A total weighted sample of 9,800 participants (15-69 years) was included. The relationship between nutritional status and NCDs was assessed using bivariate and multivariable logistic regression models while adjusting for covariates. Results Among the 9,800 participants, 2053 (21% with (95% CI: 19.8-22.1) had hypertension and 1368 (14% with (95% CI: 13.1-15.0) had high cholesterol levels. According to the multivariable logistic regression analysis, being overweight/obese (AOR = 2.0; 95% CI: 1.7-2.3), alcohol consumption, received lifestyle advice, being female, living in urban areas, increased age, having government occupation, and living in SNNP region were positively associated with hypertension. While being underweight (AOR = 0.6; 95% CI: 0.5-0.7), living in the Afar, Somali, and Tigray regions were negatively associated with hypertension. Being overweight/obese (AOR = 1.4; 95% CI: 1.1-1.7), being female, having older age, and living in Somali region were positively associated with a high cholesterol level. Whereas being underweight (AOR = 0.7; 95% CI: 0.6-0.9), received lifestyle advice, reside in rural areas, being farmer, student, and housewife, and living in Gambela region were negatively associated with a high cholesterol level. Conclusion This study found a statistically positive association between the common NCDs, namely, overweight/obesity, hypertension, and high cholesterol levels. Our findings imply that there is a need for effective interventions to prevent overweight/obesity by encouraging people to increase physical activity, minimize sedentary behavior, and maintain a healthy dietary pattern in order to reduce the risk of hypertension and high cholesterol levels.
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Affiliation(s)
| | - Fentanesh Nibret Tiruneh
- Department of Applied Human Nutrition, Faculty of Chemical and Food Engineering, Bahir Dar Institute of Technology, Bahir Dar University, Bahir Dar, Ethiopia
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El-Sawy SA, Amin YA, El-Naggar SA, Abdelsadik A. Artemisia annua L. (Sweet wormwood) leaf extract attenuates high-fat diet-induced testicular dysfunctions and improves spermatogenesis in obese rats. JOURNAL OF ETHNOPHARMACOLOGY 2023; 313:116528. [PMID: 37127141 DOI: 10.1016/j.jep.2023.116528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/15/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Artemisia annua L., known as "sweet wormwood," is widely used in Egyptian folk medicine. Egyptians implement the aerial parts in the treatment of respiratory, digestive and sexual dysfunctions. However, the mechanism by which Artemisia annua improves testicular function is still being discovered. AIM OF THE STUDY This study aimed to evaluate the modulatory effects of the crude leaf extract of Artemisia annua (AAE) on a high-fat diet induced testicular dysfunction in rats and compare it with the antilipolytic drug Orlistat. MATERIAL AND METHODS Forty adult rats were randomly classified and assigned to four groups. The first group typically consumed a balanced diet and served as a negative control (GP1). A high-fat diet-induced obesity was applied to the other three groups for 12 weeks. A positive control remained on HFD for another 8 weeks, which is GP2. Other groups were administered for 8 consecutive weeks either with Orlistat (50 mg/kg body weight) or AAE (100 mg/kg body weight), which have been defined as GP3 and GP4, respectively. Testosterone (TST), follicle-stimulating hormone (FSH) and luteinizing hormone (LH) were determined in the sera of all groups. In addition, the oxidant/antioxidant biomarkers such as protein carbonyl, malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT) activities, lactate dehydrogenase (LDH) and creatine kinase isoenzyme-B (CK-MB) were determined. An immunohistochemical stain with the apoptotic marker caspase-3 and the proliferating cell nuclear antigen (PCNA) were also investigated. RESULTS In the testes of the obese group, the results showed hormonal imbalance, an increase in oxidative stress biomarkers and apoptosis. In the group treated with orlistat (GP3), noticeably more perturbations were noted. The obese rats that had been treated with AAE (GP4) showed a significantly reduced level of oxidative stress, hormonal balance restoration and reduced apoptosis. CONCLUSIONS The crude leaf extract of A. annua is a potential herbal therapeutic for the treatment of obesity-related testicular dysfunction and the restoration of hormonal imbalance in obese rats.
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Affiliation(s)
- Samer A El-Sawy
- Biochemistry Department, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Yahia A Amin
- Theriogenology Department, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt.
| | - Sabry A El-Naggar
- Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
| | - Ahmed Abdelsadik
- Zoology Department, Faculty of Science, Aswan University, Aswan, Egypt; Laboratory of Immunometabolism, Aswan University, Egypt
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Fouda S, Jeeyavudeen MS, Pappachan JM, Jayanthi V. Pathobiology of Metabolic-Associated Fatty Liver Disease. Endocrinol Metab Clin North Am 2023. [PMID: 37495333 DOI: 10.1016/j.ecl.2023.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Metabolic-associated fatty liver disease (MAFLD), formerly known as nonalcoholic fatty liver disease, is highly associated with the metabolic syndrome. Given its high heterogeneity in patients along with unpredictable clinical outcomes, MAFLD is difficult to diagnose and manage. MAFLD is associated with obesity, diabetes, metabolic derangements, lipid disorders, cardiovascular disorders, sleep apnea, sarcopenia, gut dysbiosis, and sex hormone-related disorders. Identification of risk factors is imperative in understanding disease heterogeneity and clinical presentation to reliably diagnose and manage patients. The complexity of MAFLD pathobiology is discussed in this review in relation to its association with common metabolic and nonmetabolic disorders.
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Ide H, Akehi Y, Fukuhara S, Ohira S, Ogawa S, Kataoka T, Kumagai H, Kobayashi K, Komiya A, Shigehara K, Syuto T, Soh J, Tanabe M, Taniguchi H, Chiba K, Matsushita K, Mitsui Y, Yoneyama T, Shirakawa T, Fujii Y, Kumano H, Ueshiba H, Amano T, Sasaki H, Maeda S, Mizokami A, Suzuki K, Horie S. Summary of the clinical practice manual for late-onset hypogonadism. Int J Urol 2023; 30:422-430. [PMID: 36757880 DOI: 10.1111/iju.15160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 01/15/2023] [Indexed: 02/10/2023]
Abstract
Testosterone plays an important role in maintaining both physical and mental function. Age-related testosterone depletion contributes to the development of angina, arteriosclerosis, obesity, metabolic syndrome, dementia, frailty, and a range of other conditions. A condition involving age-related testosterone depletion and the associated clinical symptoms is defined as late-onset hypogonadism (LOH). LOH is treated by testosterone replacement therapy. Indications for testosterone replacement therapy are determined by evaluating symptoms and signs.
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Affiliation(s)
- Hisamitsu Ide
- Department of Urology, Dokkyo Medical University, Saitama Medical Center, Saitama, Japan
| | - Yuko Akehi
- Diabetes Therapeutics and Research Center, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan
| | - Shinichiro Fukuhara
- Department of Urology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shin Ohira
- Department of Urology, Kawasaki Medical School, Okayama, Japan
| | - Sumito Ogawa
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomoya Kataoka
- Department of Clinical Pharmaceutics, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Aichi, Japan
| | - Hiroshi Kumagai
- The Leonard Davis School of Gerontology, University of Southern California, Los Angeles, California, USA
| | - Ko Kobayashi
- Department of Urology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Akira Komiya
- Department of Urology, Kameda Medical Center, Chiba, Japan
| | - Kazuyoshi Shigehara
- Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan
| | - Takahiro Syuto
- Department of Urology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Jintetu Soh
- Department of Urology, Japanese Red Cross Society Kyoto Daini, Kyoto, Japan
| | - Makito Tanabe
- Department of Endocrinology and Diabetes Mellitus, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Hisanori Taniguchi
- Department of Urology and Andrology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Koji Chiba
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Kazuhito Matsushita
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Yozo Mitsui
- Department of Urology, Toho University School of Medicine, Tokyo, Japan
| | - Takahiro Yoneyama
- Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Tomoya Shirakawa
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
| | - Yasuhisa Fujii
- Department of Urology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroaki Kumano
- Faculty of Human Sciences, Waseda University, Saitama, Japan
| | - Hajime Ueshiba
- Division of Diabetes, Metabolism and Endocrinology, Toho University Ohashi Medical Center, Tokyo, Japan
| | - Toshiyasu Amano
- Department of Urology, Nagano Red Cross Hospital, Nagano, Japan
| | - Haruaki Sasaki
- Department of Urology, Showa University Fujigaoka Hospital, Kanagawa, Japan
| | - Seiji Maeda
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Atsushi Mizokami
- Department of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Ishikawa, Japan
| | - Kazuhiro Suzuki
- Department of Urology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Shigeo Horie
- Department of Urology, Juntendo University, Graduate School of Medicine, Tokyo, Japan
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Effects of growth hormone on lipid metabolism and sexual development in pubertal obese male rats. Open Life Sci 2022; 17:1531-1540. [DOI: 10.1515/biol-2022-0515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 05/25/2022] [Accepted: 09/21/2022] [Indexed: 11/25/2022] Open
Abstract
Abstract
To investigate the effects of growth hormone (GH) on pubertal obese male rats, a rat model of high-fat diet-induced obesity was established in juvenile male rats. The model rats were divided into the treatment group (GH) and the non-treatment group (physiological saline). After 4 weeks, we measured the levels of alanine transaminase (ALT), aspartate aminotransferase (AST), total cholesterol (TC), triglycerides (TGs), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), estrogen (E2), testosterone (T), and insulin-like growth factor (IGF-1). The morphological changes of the liver and testis were assessed, and the expression of aromatase was detected. The levels of ALT, AST, TC, TG, LDL-C, E2, and IGF-1 in the treatment group were significantly lower than in the non-treated model rats (P < 0.001). The levels of HDL-C and T of GH-treated rats were significantly higher than those of the non-treatment group (P < 0.001). Compared with non-treated model rats, GH-treated model rats showed reduced liver steatosis, improved morphological structure of the testicular seminiferous tubules, and an increased number of spermatogenic cells. The treatment group also showed lower expression of aromatase in the liver and testis compared with the non-treatment group. GH partially protected pubertal male rats from obesity-induced lipid metabolic disorder and sexual retardation.
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12
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Obesity is a chronic disease. Positioning statement of the Diabetes, Obesity and Nutrition Workgroup of the Spanish Society of Internal Medicine (SEMI) for an approach centred on individuals with obesity. Rev Clin Esp 2021; 221:509-516. [PMID: 34752262 DOI: 10.1016/j.rceng.2020.06.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/11/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND Obesity is a chronic, complex and multifactorial metabolic disease involved in the development of chronic noncommunicable diseases such as type 2 diabetes mellitus, cardiovascular disease and cancer. The care of individuals with obesity is an essential part of the holistic approach provided by internal medicine to patients. MATERIAL AND METHODS Between September 2019 and January 2020, we distributed an online survey to the members of the Spanish Society of Internal Medicine. We prepared a Strengths, Weaknesses, Opportunities, and Threats analysis using the responses and, using the nominal group technique, developed the recommendations. RESULTS We obtained 599 responses. The respondents mean age was 44.4 ± 11 years, and 52.1% were women. Some 91.8% of the internists evaluate their patients to rule out the comorbidities associated with obesity, mainly type 2 diabetes mellitus (96.2%), cardiovascular disease (88.9%) and obesity-associated hypoventilation syndrome (73%), among others. Some 79.9% provided indications on lifestyle changes. Some 64.1% and 74.9% of the respondents knew the indications for the drugs and bariatric surgery, respectively. Some 93.8% and 83% of the respondents considered obesity and excess weight a chronic disease, and 88.7% considered it a disease of specific interest to internists, who should take an active and leading role in its treatment (85.3%). CONCLUSIONS The objective of the present document is to determine the degree of understanding and sensitivity of internists regarding the management of obesity and to develop a consensus of recommendations for the Spanish Society of Internal Medicine based on the scientific evidence and the opinion of its members.
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13
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Buch A, Marcus Y, Shefer G, Zimmet P, Stern N. Approach to Obesity in the Older Population. J Clin Endocrinol Metab 2021; 106:2788-2805. [PMID: 34406394 DOI: 10.1210/clinem/dgab359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Indexed: 12/14/2022]
Abstract
Until recently, weight loss in older obese people was feared because of ensuing muscle loss and frailty. Facing overall increasing longevity, high rates of obesity in older individuals (age ≥ 65 years) and a growing recognition of the health and functional cost of the number of obesity years, abetted by evidence that intentional weight loss in older obese people is safe, this approach is gradually, but not unanimously, being replaced by more active principles. Lifestyle interventions that include reduced but sufficient energy intake, age-adequate protein and micronutrient intake, coupled with aerobic and resistance exercise tailored to personal limitations, can induce weight loss with improvement in frailty indices. Sustained weight loss at this age can prevent or ameliorate diabetes. More active steps are controversial. The use of weight loss medications, particularly glucagon-like peptide-1 analogs (liraglutide as the first example), provides an additional treatment tier. Its safety and cardiovascular health benefits have been convincingly shown in older obese patients with type 2 diabetes mellitus. In our opinion, this option should not be denied to obese individuals with prediabetes or other obesity-related comorbidities based on age. Finally, many reports now provide evidence that bariatric surgery can be safely performed in older people as the last treatment tier. Risk-benefit issues should be considered with extreme care and disclosed to candidates. The selection process requires good presurgical functional status, individualized consideration of the sequels of obesity, and reliance on centers that are highly experienced in the surgical procedure as well as short-term and long-term subsequent comprehensive care and support.
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Affiliation(s)
- Assaf Buch
- The Sagol Center for Epigenetics of Aging and Metabolism, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
| | - Yonit Marcus
- The Sagol Center for Epigenetics of Aging and Metabolism, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Gabi Shefer
- The Sagol Center for Epigenetics of Aging and Metabolism, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
| | - Paul Zimmet
- The Sagol Center for Epigenetics of Aging and Metabolism, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria 3004, Australia
| | - Naftali Stern
- The Sagol Center for Epigenetics of Aging and Metabolism, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
- The Institute of Endocrinology, Metabolism and Hypertension, Tel Aviv-Sourasky Medical Center, Tel Aviv 6423906, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
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14
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Gomez G, Berger A, Kathrins M. Secondary azoospermia after sleeve gastrectomy: a case report. F S Rep 2021; 2:245-248. [PMID: 34278361 PMCID: PMC8267378 DOI: 10.1016/j.xfre.2021.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022] Open
Abstract
Objective To report the first case of secondary azoospermia after sleeve gastrectomy. Design Case report. Setting Academic male infertility clinic. Patient(s) A 33-year-old man with secondary azoospermia and primary testicular failure with testosterone deficiency after laparoscopic sleeve gastrectomy. Intervention(s) Hormonal therapy with anastrozole for 10 months and diagnostic testicular biopsy. Main Outcome Measure(s) Semen analyses and testicular histopathology. Result(s) Non-obstructive azoospermia persisted at 20 months after surgery despite hormonal therapy with anastrozole. Testicular histopathology revealed the presence of Sertoli cells only. Conclusion(s) Although further research is need to determine the relationship between sleeve gastrectomy and secondary infertility, men should be informed of the potentially deleterious effects of this surgery on semen parameters.
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Affiliation(s)
- Gricelda Gomez
- Division of Urology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Alexandra Berger
- Division of Urology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Martin Kathrins
- Division of Urology, Brigham and Women's Hospital, Boston, Massachusetts
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15
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Lautenbach A, Stoll F, Mann O, Busch P, Huber TB, Kielstein H, Bähr I, Aberle J. Long-Term Improvement of Chronic Low-Grade Inflammation After Bariatric Surgery. Obes Surg 2021; 31:2913-2920. [PMID: 33666873 PMCID: PMC7934816 DOI: 10.1007/s11695-021-05315-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/23/2021] [Accepted: 02/23/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE Bariatric surgery (BS) was shown to improve inflammatory markers in previous short-term follow-up studies. The aim of the present study was to assess the long-term effects of BS on chronic low-grade inflammation markers related to severe obesity. Moreover, the meaning of the type of BS procedure as well as the remission of type 2 diabetes (T2D) for inflammatory status up to 4 years after BS was analyzed. MATERIALS AND METHODS In a retrospective cohort study including 163 patients at baseline, inflammatory and metabolic parameters were assessed at 4 time points: before surgery (baseline), 6 months after surgery (visit 1), 2 years after surgery (visit 2), and 4 years after surgery (visit 3). Univariate regression analysis was used to identify variables that were thought to determine change in inflammatory parameters. RESULTS CRP, hs-CRP, leucocytes, and ferritin significantly declined in the mid- and long-term according to the U-shaped curve of weight loss (p<0.001). Change in body mass index (BMI) at long-time follow-up showed a significant linear effect on change in leucocytes (B=0.082; p<0.001) and change in hs-CRP (B=0.03; p<0.05). There was a strong, positive correlation between T2D and hs-CRP at visit 2 (rs=0.195; p<0.05) and visit 3 (rs=0.36; p=0.001). With regard to type of surgery and gender, there were no significant differences in inflammatory parameters. CONCLUSION BS is able to reduce obesity-related chronic low-grade inflammation up to 4 years after surgical intervention. The improvement in metaflammation is related to the change in BMI and remission of T2D in the long-term.
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Affiliation(s)
- Anne Lautenbach
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
| | - Fabian Stoll
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Oliver Mann
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Philipp Busch
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias B Huber
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Heike Kielstein
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Ina Bähr
- Institute of Anatomy and Cell Biology, Medical Faculty of Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Jens Aberle
- III. Department of Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
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16
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Moriconi E, Camajani E, Fabbri A, Lenzi A, Caprio M. Very-Low-Calorie Ketogenic Diet as a Safe and Valuable Tool for Long-Term Glycemic Management in Patients with Obesity and Type 2 Diabetes. Nutrients 2021; 13:nu13030758. [PMID: 33652834 PMCID: PMC7996853 DOI: 10.3390/nu13030758] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/15/2021] [Accepted: 02/17/2021] [Indexed: 12/15/2022] Open
Abstract
Obesity-related type 2 diabetes represents one of the most difficult challenges for the healthcare system. This retrospective study aims to determine the efficacy, safety and durability of a very-low-calorie ketogenic diet (VLCKD), compared to a standard low-calorie diet (LCD) on weight-loss, glycemic management, eating behavior and quality of life in patients with type 2 diabetes (T2DM) and obesity. Thirty patients with obesity and T2DM, aged between 35 and 75 years, who met the inclusion criteria and accepted to adhere to a VLCKD or a LCD nutritional program, were consecutively selected from our electronic database. Fifteen patients followed a structured VLCKD protocol, fifteen followed a classical LCD. At the beginning of the nutritional protocol, all patients were asked to stop any antidiabetic medications, with the exception of metformin. Data were collected at baseline and after 3 (T1) and 12 (T2) months. At T1 and T2, BMI was significantly reduced in the VLCKD group (p < 0.001), whereas it remained substantially unchanged in the LCD group. HbA1c was significantly reduced in the VLCKD group (p = 0.002), whereas a slight, although not significant, decrease was observed in the LCD group. Quality of life and eating behavior scores were improved in the VLCKD group, whereas no significant changes were reported in the LCD group, both at T1 and T2. At the end of the study, in the VLCKD group 26.6% of patients had stopped all antidiabetic medications, and 73.3% were taking only metformin, whereas 46.6% of LCD patients had to increase antidiabetic medications. The study confirms a valuable therapeutic effect of VLCKD in the long-term management of obesity and T2DM and its potential contribution to remission of the disease.
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Affiliation(s)
- Eleonora Moriconi
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, 00166 Rome, Italy;
- PhD Programme in Endocrinological Sciences, Sapienza University of Rome, 00161 Rome, Italy;
| | - Elisabetta Camajani
- PhD Programme in Endocrinological Sciences, Sapienza University of Rome, 00161 Rome, Italy;
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy
| | - Andrea Fabbri
- Division of Endocrinology, CTO Andrea Alesini Hospital, ASL Roma 2, Department of Systems Medicine, University of Rome “Tor Vergata”, 00133 Rome, Italy;
| | - Andrea Lenzi
- Section of Medical Pathophysiology and Endocrinology, Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy;
| | - Massimiliano Caprio
- Laboratory of Cardiovascular Endocrinology, IRCCS San Raffaele Pisana, 00166 Rome, Italy;
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Roma Open University, 00166 Rome, Italy
- Correspondence:
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17
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Ngowi EE, Wang YZ, Khattak S, Khan NH, Mahmoud SSM, Helmy YASH, Jiang QY, Li T, Duan SF, Ji XY, Wu DD. Impact of the factors shaping gut microbiota on obesity. J Appl Microbiol 2021; 131:2131-2147. [PMID: 33570819 DOI: 10.1111/jam.15036] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/01/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022]
Abstract
Obesity is considered as a risk factor for chronic health diseases such as heart diseases, cancer and diabetes 2. Reduced physical activities, lifestyle, poor nutritional diet and genetics are among the risk factors associated with the development of obesity. In recent years, several studies have explored the link between the gut microbiome and the progression of diseases including obesity, with the shift in microbiome abundance and composition being the main focus. The alteration of gut microbiome composition affects both nutrients metabolism and specific gene expressions, thereby disturbing body physiology. Specifically, the abundance of fibre-metabolizing microbes is associated with weight loss and that of protein and fat-metabolizing bacteria with weight gain. Various internal and external factors such as genetics, maternal obesity, mode of delivery, breastfeeding, nutrition, antibiotic use and the chemical compounds present in the environment are known to interfere with the richness of the gut microbiota (GM), thus influencing weight gain/loss and ultimately the development of obesity. However, the effectiveness of each factor in potentiating the shift in microbes' abundance to result in significant changes that can lead to obesity is not yet clear. In this review, we will highlight the factors involved in shaping GM, their influence on obesity and possible interventions. Understanding the influence of these factors on the diversity of the GM and how to improve their effectiveness on disease conditions could be keys in the treatment of metabolic diseases.
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Affiliation(s)
- Ebenezeri Erasto Ngowi
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China.,Department of Biological Sciences, Faculty of Science, Dares Salaam University College of Education, Dares Salaam, Tanzania
| | - Yi-Zhen Wang
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China
| | - Saadullah Khattak
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China
| | - Nazeer Hussain Khan
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China
| | - Salma Sayed Mohamed Mahmoud
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China
| | - Yasmeen Ahmed Saleheldin Hassan Helmy
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China
| | - Qi-Ying Jiang
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China
| | - Tao Li
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Municipal Key Laboratory of Cell Signal Transduction, Henan Provincial Engineering Centre for Tumor Molecular Medicine, Henan University, Kaifeng, Henan, China
| | - Shao-Feng Duan
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Institute for Innovative Drug Design and Evaluation, School of Pharmacy, Henan University, Kaifeng, Henan, China
| | - Xin-Ying Ji
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,Kaifeng Key Laboratory of Infection and Biological Safety, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China
| | - Dong-Dong Wu
- Henan International Joint Laboratory for Nuclear Protein Regulation, School of Basic Medical Sciences, Henan University, Kaifeng, Henan, China.,School of Stomatology, Henan University, Kaifeng, Henan, China
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18
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Yeo S, Holl K, Peñaherrera N, Wissinger U, Anstee K, Wyn R. Burden of Male Hypogonadism and Major Comorbidities, and the Clinical, Economic, and Humanistic Benefits of Testosterone Therapy: A Narrative Review. CLINICOECONOMICS AND OUTCOMES RESEARCH 2021; 13:31-38. [PMID: 33488103 PMCID: PMC7814241 DOI: 10.2147/ceor.s285434] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 12/03/2020] [Indexed: 01/10/2023] Open
Abstract
Male hypogonadism and major comorbidities such as type 2 diabetes mellitus, obesity, cardiovascular disease, and osteoporosis appear closely connected, forming a vicious cycle that leads to further hypogonadism. This narrative review provides a comprehensive overview of the current literature on the overall burden of male hypogonadism alongside related comorbidities, and how this may be alleviated through testosterone therapy. Observational and clinical data demonstrate that the interaction of male hypogonadism and its related comorbidities is associated with increased mortality, cardiovascular event risk and reduced quality of life. Evidence from epidemiological and registry-based studies shows that this clinical and humanistic burden translates to increased economic burden on health-care systems, through increased physician visits, medical claims, and drug costs. Male hypogonadism can be managed with testosterone therapy, which is intended to normalize testosterone concentrations and thereby reduce both hypogonadism symptoms and risk of comorbidities. Clinical and observational data suggest that in males with hypogonadism, testosterone therapy rapidly and sustainably improves glycemia, reduces risk of progression to diabetes, leads to significantly reduced waist circumference and fat mass, while providing significant positive effects on cardiovascular event risk and bone density. Significant and sustained improvement in patient-reported erectile function, urinary function, and aging male symptoms have also been shown. Economic evaluations have estimated that reduced comorbidity risk following testosterone therapy may lead to cost-savings, with one study estimating yearly inpatient savings of £3732 for treating comorbidities after intervention. A major unmet need exists in the area of male hypogonadism, particularly related to common comorbidities. Options for treatment include testosterone therapy, which has been shown to alleviate the clinical, economic, and humanistic burden associated with these conditions. As the prevalence of male hypogonadism is likely to increase globally, and this condition may be currently underdiagnosed, cost-saving testosterone therapies should be increasingly considered to manage hypogonadism.
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Affiliation(s)
- Sandy Yeo
- Real World Evidence, Bayer (South East Asia) Pte Ltd, Singapore
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19
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Crisóstomo L, Pereira SC, Monteiro MP, Raposo JF, Oliveira PF, Alves MG. Lifestyle, metabolic disorders and male hypogonadism - A one-way ticket? Mol Cell Endocrinol 2020; 516:110945. [PMID: 32707080 DOI: 10.1016/j.mce.2020.110945] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/27/2020] [Accepted: 07/06/2020] [Indexed: 12/15/2022]
Abstract
Hypogonadism is more frequent among men with common metabolic diseases, notably obesity and type 2 diabetes. Indeed, endocrine disruption caused by metabolic diseases can trigger the onset of hypogonadism, although the underlying molecular mechanisms are not entirely understood. Metabolic diseases are closely related to unhealthy lifestyle choices, such as dietary habits and sedentarism. Therefore, hypogonadism is part of a pathological triad gathering unhealthy lifestyle, metabolic disease and genetic background. Additionally, hypogonadism harbors the potential to aggravate underlying metabolic disorders, further sustaining the mechanisms leading to disease. To what extent does lifestyle intervention in men suffering from these metabolic disorders can prevent, improve or reverse hypogonadism, is still controversial. Moreover, recent evidence suggests that the metabolic status of the father is related to the risk of inter and transgenerational inheritance of hypogonadism. In this review, we will address the proposed mechanisms of disease, as well as currently available interventions for hypogonadism.
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Affiliation(s)
- Luís Crisóstomo
- Department of Microscopy, Laboratory of Cell Biology, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal
| | - Sara C Pereira
- Department of Microscopy, Laboratory of Cell Biology, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal
| | - Mariana P Monteiro
- Department of Anatomy, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal
| | - João F Raposo
- NOVA Medical School - New University Lisbon, Lisbon, Portugal; APDP - Diabetes Portugal, Lisbon, Portugal
| | - Pedro F Oliveira
- QOPNA & LAQV, Department of Chemistry, University of Aveiro, Portugal
| | - Marco G Alves
- Department of Microscopy, Laboratory of Cell Biology, And Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Portugal.
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20
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Romani A, Campo M, Urciuoli S, Marrone G, Noce A, Bernini R. An Industrial and Sustainable Platform for the Production of Bioactive Micronized Powders and Extracts Enriched in Polyphenols From Olea europaea L. and Vitis vinifera L. Wastes. Front Nutr 2020; 7:120. [PMID: 32974376 PMCID: PMC7473407 DOI: 10.3389/fnut.2020.00120] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/25/2020] [Indexed: 12/13/2022] Open
Abstract
In the last few years, literature data have reported that health status is related to the consumption of foods rich in polyphenols, bioactive compounds found in the plant world, in particular in vegetables and fruit. These pieces of scientific evidence have led to an increase in the demand for functional foods and drinks enriched in polyphenols, so that plant materials are more and more requested. The availability of food and agricultural wastes has adverse effects on the economy, environment, and human health. On the other hand, these materials are a precious source of bioactive compounds as polyphenols. Their recovery and reuse from wastes are according to the circular economy strategy, which has introduced the “zero waste concept.” However, the process is convenient from an economic and environmental point of view only if the final products are standardized and obtained using sustainable and industrial technologies. In this panorama, this paper describes an industrial and sustainable platform for the production of micronized powders and extracts enriched in polyphenols from Olea europaea L. and Vitis vinifera L. wastes that are useful for food, cosmetics, and pharmaceuticals sectors. The platform is based on drying plant materials, extraction of polyphenols through membrane technologies with water, and, when necessary, the concentration of the final fractions under vacuum evaporation. All powders and extracts were characterized by high-performance liquid chromatography–diode array detector–mass spectrometry analysis to define the qualitative and quantitative content of bioactive compounds and insure their standardization and reproducibility. The chromatographic profiles evidenced the presence of secoiridoids, flavones, flavonols, anthocyanins, hydroxycinnamic acids, catechins, and condensed tannins. An overview of the biological activities of the main polyphenols present in Olea europaea L. and Vitis vinifera L. powders and extracts is reported because of biomedical applications.
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Affiliation(s)
- Annalisa Romani
- PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement, Technology and Analysis), DiSIA, University of Florence, Florence, Italy
| | - Margherita Campo
- PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement, Technology and Analysis), DiSIA, University of Florence, Florence, Italy
| | - Silvia Urciuoli
- PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement, Technology and Analysis), DiSIA, University of Florence, Florence, Italy
| | - Giulia Marrone
- PhD School of Applied Medical, Surgical Sciences, University of Rome Tor Vergata, Rome, Italy.,UOC of Internal Medicine-Center of Hypertension and Nephrology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Annalisa Noce
- UOC of Internal Medicine-Center of Hypertension and Nephrology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Roberta Bernini
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, Viterbo, Italy
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21
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Potential Cardiovascular and Metabolic Beneficial Effects of ω-3 PUFA in Male Obesity Secondary Hypogonadism Syndrome. Nutrients 2020; 12:nu12092519. [PMID: 32825328 PMCID: PMC7551945 DOI: 10.3390/nu12092519] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/10/2020] [Accepted: 08/17/2020] [Indexed: 02/06/2023] Open
Abstract
Long-chain ω-3 polyunsaturated fatty acids (PUFAs) are fundamental biocomponents of lipids and cell membranes. They are involved in the maintenance of cellular homeostasis and they are able to exert anti-inflammatory and cardioprotective actions. Thanks to their potential beneficial effects on the cardiovascular system, metabolic axis and body composition, we have examined their action in subjects affected by male obesity secondary hypogonadism (MOSH) syndrome. MOSH syndrome is characterized by the presence of obesity associated with the alteration of sexual and metabolic functions. Therefore, this review article aims to analyze scientific literature regarding the possible benefits of ω-3 PUFA administration in subjects affected by MOSH syndrome. We conclude that there are strong evidences supporting ω-3 PUFA administration and/or supplementation for the treatment and management of MOSH patients.
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Carretero Gómez J, Ena J, Arévalo Lorido JC, Seguí Ripoll JM, Carrasco-Sánchez FJ, Gómez-Huelgas R, Pérez Soto MI, Delgado Lista J, Pérez Martínez P. Obesity is a chronic disease. Positioning statement of the Diabetes, Obesity and Nutrition Workgroup of the Spanish Society of Internal Medicine (SEMI) for an approach centred on individuals with obesity. Rev Clin Esp 2020; 221:S0014-2565(20)30180-6. [PMID: 32723530 DOI: 10.1016/j.rce.2020.06.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/10/2020] [Accepted: 06/11/2020] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Obesity is a chronic, complex and multifactorial metabolic disease involved in the development of chronic noncommunicable diseases such as type 2 diabetes mellitus, cardiovascular disease and cancer. The care of individuals with obesity is an essential part of the holistic approach provided by internal medicine to patients. MATERIAL AND METHODS Between September 2019 and January 2020, we distributed an online survey to the members of the Spanish Society of Internal Medicine. We prepared a Strengths, Weaknesses, Opportunities, and Threats analysis using the responses and, using the nominal group technique, developed the recommendations. RESULTS We obtained 599 responses. The respondents mean age was 44.4±11 years, and 52.1% were women. Some 91.8% of the internists evaluate their patients to rule out the comorbidities associated with obesity, mainly type 2 diabetes mellitus (96.2%), cardiovascular disease (88.9%) and obesity-associated hypoventilation syndrome (73%), among others. Some 79.9% provided indications on lifestyle changes. Some 64.1% and 74.9% of the respondents knew the indications for the drugs and bariatric surgery, respectively. Some 93.8% and 83% of the respondents considered obesity and excess weight a chronic disease, and 88.7% considered it a disease of specific interest to internists, who should take an active and leading role in its treatment (85.3%). CONCLUSIONS The objective of the present document is to determine the degree of understanding and sensitivity of internists regarding the management of obesity and to develop a consensus of recommendations for the Spanish Society of Internal Medicine based on the scientific evidence and the opinion of its members.
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Affiliation(s)
| | - J Ena
- Servicio de Medicina Interna, Hospital de la Marina Baixa, Alicante, España
| | | | - J M Seguí Ripoll
- Servicio de Medicina Interna, Hospital Universitario San Juan de Alicante, Alicante, España
| | - F J Carrasco-Sánchez
- Servicio de Medicina Interna, Hospital Universitario Juan Ramón Jiménez, Huelva, España
| | - R Gómez-Huelgas
- Servicio de Medicina Interna. Hospital Regional Universitario de Málaga, Málaga. Instituto de Investigación Biomédica de Málaga Institute of Biomedical (IBIMA). CIBER Physiopathology of Obesity and Nutrition - CIBERobn
| | - M I Pérez Soto
- Servicio de Medicina Interna, Hospital Universitario de Vinalopó, Elche, Alicante, España
| | - J Delgado Lista
- Servicio de Medicina Interna, Hospital Universitario Reina Sofía/Universidad de Córdoba/ Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba. CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, España
| | - P Pérez Martínez
- Unidad de Lípidos y Arterioesclerosis, Hospital Universitario Reina Sofía/Universidad de Córdoba/ Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba. CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, España
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23
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Santos HO, Howell S, Nichols K, Teixeira FJ. Reviewing the Evidence on Vitamin D Supplementation in the Management of Testosterone Status and Its Effects on Male Reproductive System (Testis and Prostate): Mechanistically Dazzling but Clinically Disappointing. Clin Ther 2020; 42:e101-e114. [PMID: 32446600 DOI: 10.1016/j.clinthera.2020.03.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 03/11/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE Vitamin D supplementation has been suggested to increase testosterone levels. The primary purpose of this literature review was to critically assess the physiologic effects of vitamin D supplementation on serum testosterone concentrations in men and the secondary purpose was to evaluate the feasibility of vitamin D status toward urologic health (testis and prostate). METHODS A structured literature review was performed using the Cochrane, MEDLINE, and Web of Science databases. The literature search encompassed studies published between 2011 and 2019. FINDINGS Observational studies suggest an association between higher testosterone and serum vitamin D concentrations. Conversely, most randomized clinical trials that investigated the effect of vitamin D administration on testosterone levels have failed to detect any significant effect. Physiologically, vitamin D is engaging in spermatogenesis, but it remains unclear whether vitamin D is a determinant of fertility. With prostate support, the management of vitamin D status has been associated with a decreased prevalence of benign prostatic hyperplasia and symptoms (ie, lower urinary tract symptoms). However, with prostate cancer, there is a paucity of evidence pertaining to vitamin D supplementation. IMPLICATIONS Mechanistically, vitamin D exhibits essential roles in the testis and prostate; otherwise, there is no apparent evidence to support the use of vitamin D supplementation to increase testosterone levels and to improve clinical outcomes related to the male reproductive system.
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Affiliation(s)
- Heitor O Santos
- School of Medicine, Federal University of Uberlandia, Uberlandia, Minas Gerais, Brazil.
| | - Scott Howell
- Center for Research, Tier 1 Health and Wellness, Chattanooga, TN, USA
| | - Keith Nichols
- Center for Research, Tier 1 Health and Wellness, Chattanooga, TN, USA
| | - Filipe J Teixeira
- Research Center for Biosciences & Health Technologies, Universidade Lusófona de Humanidades e Tecnologias, Lisboa, Portugal
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24
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Sinha DK, Balasubramanian A, Tatem AJ, Rivera-Mirabal J, Yu J, Kovac J, Pastuszak AW, Lipshultz LI. Beyond the androgen receptor: the role of growth hormone secretagogues in the modern management of body composition in hypogonadal males. Transl Androl Urol 2020; 9:S149-S159. [PMID: 32257855 PMCID: PMC7108996 DOI: 10.21037/tau.2019.11.30] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Male hypogonadism is an increasingly prevalent clinical condition that affects patients’ quality of life and overall health. Obesity and metabolic syndrome can both cause and result from hypogonadism. Although testosterone remains the gold standard for hypogonadism management, its benefits are not always conserved across different populations, especially with regards to changes in body composition. Partially in response to this, growth hormone secretagogues (GHS) have emerged as a potential novel adjunctive therapy for some of the symptoms of hypogonadism, although current data on their clinical efficacy largely remain lacking. The present review examines the existing literature on the use of GHS and explores their potential complementary role in the management of hypogonadal and eugonadal males with metabolic syndrome or subclinical hypogonadism (SH). The GHS that will be discussed include sermorelin, growth hormone-releasing peptides (GHRP)-2, GHRP-6, ibutamoren, and ipamorelin. All are potent GH and IGF-1 stimulators that can significantly improve body composition while ameliorating specific hypogonadal symptoms including fat gain and muscular atrophy. However, a paucity of data examining the clinical effects of these compounds currently limits our understanding of GHS’ role in the treatment of men with hypogonadism, but does open opportunities for future investigation.
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Affiliation(s)
| | | | | | | | - Justin Yu
- Baylor College of Medicine, Houston, TX, USA
| | - Jason Kovac
- Men's Health Center, Urology of Indiana, Greenwood, IN, USA
| | - Alexander W Pastuszak
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Larry I Lipshultz
- Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA.,Center for Reproductive Medicine, Baylor College of Medicine, Houston, TX, USA
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25
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De Lorenzo A, Romano L, Di Renzo L, Di Lorenzo N, Cenname G, Gualtieri P. Obesity: A preventable, treatable, but relapsing disease. Nutrition 2020; 71:110615. [DOI: 10.1016/j.nut.2019.110615] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/19/2019] [Accepted: 10/05/2019] [Indexed: 12/26/2022]
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26
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Avolio E, Gualtieri P, Romano L, Pecorella C, Ferraro S, Palma G, Di Renzo L, De Lorenzo A. Obesity and Body Composition in Man and Woman: Associated Diseases and the New Role of Gut Microbiota. Curr Med Chem 2020; 27:216-229. [PMID: 30914014 DOI: 10.2174/0929867326666190326113607] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 09/18/2018] [Accepted: 02/19/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Obesity is now recognized as a worldwide health issue and has reached epidemic proportions, affecting both developed and developing countries. The World Obesity Federation stated that "Obesity is a chronic relapsing disease process": as a result, obesity has been recognized internationally as a chronic disease. The primary cause of the metabolic syndrome and increase of the cardiovascular risk have been identified in "sick fat", a condition then defined as adiposopathy. Heart attacks, strokes and renal failures are pathologies that have mid-risk factors such as dyslipidemia, hypertension and diabetes, which in turn are caused by obesity, whose primary risk factor is represented by the diet. The aim of the present review is to consider the importance of body composition, together with chronic inflammation and a new gut microbiota data that may turn out to be crucial elements of some target treatment of human obesity. METHODS In this review, we performed research using PubMed database reviewing the evidence in the literature of evidence information regarding the link between obesity and body composition in the development of metabolic disease via inflammation markers and in particular, the new role exerted by gut microbiota. RESULTS Several papers were evaluated searching for differences in fat mass and disease risk. We also identified the same papers dealing with differences in body composition and metabolic syndrome. Our attention focuses also on a new frontier of gut microbiota composition in the body weight decrease and anti-inflammatory effects. CONCLUSION To the saving of lean mass, for the prevention of cardiometabolic diseases, also considering the relationship with obesity, it is necessary to reduce the inflammatory state, acting on the gut-microbiota and on the intestinal permeability. To improve the health of the intestinal flora, we propose a 4P medicine and treatment with probiotics, prebiotics, postbiotics, and polyphenols.
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Affiliation(s)
- Ennio Avolio
- Section of Clinical Nutrition and Nutrigenomics, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.,Health Center srl, via Sabotino 56, 87100 Cosenza, Italy
| | - Paola Gualtieri
- Section of Clinical Nutrition and Nutrigenomics, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Lorenzo Romano
- School of Specialization in Food Science, University of Rome Tor Vergata, Rome, Italy
| | | | - Simona Ferraro
- School of Specialization in Food Science, University of Rome Tor Vergata, Rome, Italy
| | - Giuseppe Palma
- S.S.D. Sperimentazione Animale, Istituto Nazionale Tumori-IRCCS-"Fondazione G. Pascale", 80131 Naples, Italy
| | - Laura Di Renzo
- Section of Clinical Nutrition and Nutrigenomics, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Antonino De Lorenzo
- Section of Clinical Nutrition and Nutrigenomics, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
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27
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Soares EMKVK, Smith D, Grossi Porto LG. Worldwide prevalence of obesity among firefighters: a systematic review protocol. BMJ Open 2020; 10:e031282. [PMID: 31924634 PMCID: PMC6955470 DOI: 10.1136/bmjopen-2019-031282] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Obesity may interfere with job performance and increase the risk of injury during firefighting activity. Obesity also has many deleterious effects on health indices and is associated with higher all-cause mortality. Studies report a high prevalence of obesity in the fire service. Also, firefighters' work schedule (12-hour to 24-hour shifts) and food availability during night shifts may be related to weight gain. Studies in American firefighters have shown annual weight gain between 0.5 and 1.5 kg. This study aims to report the obesity prevalence in the fire service to describe how it varies based on country and region, job status, type of firefighter and gender. METHODS AND ANALYSIS The main outcome evaluated will be obesity prevalence. We will systematically search the literature databases PubMed, Medline, Web of Science, Sportdiscus, Academic Search Premier, Cumulative Index of Nursing and Allied Health Literature (CINAHL), SciTech Premium Collection, Sports Medicine & Education Index, Research Library and Scopus. One reviewer will perform the search. Two independent reviewers will select studies, extract data from eligible studies and evaluate their methodological and reporting quality. Agreement between reviewers will be measured using Cohen's kappa. Other data of interest will include age, body mass index, body fat percentage, job status (career, volunteer or military), years of service and type of firefighter (eg, structural and wildland firefighter). We will produce a narrative summary of our findings. Tables will be generated to summarise data. ETHICS AND DISSEMINATION This systematic review does not require ethics clearance since published studies with non-identifiable data will be used. The results of the systematic review will be disseminated via publication in a peer-reviewed journal and through conference presentations. PROSPERO REGISTRATION NUMBER CRD42019129122.
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Affiliation(s)
- Edgard Melo Keene Von Koenig Soares
- Faculdade de Educação Física, Universidade de Brasilia, Brasilia, Distrito Federal, Brazil
- Health and Human Physiological Sciences/First Responder Health and Safety Laboratory, Skidmore College, Saratoga Springs, New York, USA
| | - Denise Smith
- Health and Human Physiological Sciences/First Responder Health and Safety Laboratory, Skidmore College, Saratoga Springs, New York, USA
| | - Luiz Guilherme Grossi Porto
- Faculdade de Educação Física, Universidade de Brasilia, Brasilia, Distrito Federal, Brazil
- Department of Environmental Health, Harvard University TH Chan School of Public Health, Boston, Massachusetts, USA
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28
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Sultan S, Patel AG, El-Hassani S, Whitelaw B, Leca BM, Vincent RP, le Roux CW, Rubino F, Aywlin SJB, Dimitriadis GK. Male Obesity Associated Gonadal Dysfunction and the Role of Bariatric Surgery. Front Endocrinol (Lausanne) 2020; 11:408. [PMID: 32636807 PMCID: PMC7318874 DOI: 10.3389/fendo.2020.00408] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/20/2020] [Indexed: 01/01/2023] Open
Abstract
Obesity is an ever growing pandemic and a prevalent problem among men of reproductive age that can both cause and exacerbate male-factor infertility by means of endocrine abnormalities, associated comorbidities, and direct effects on the precision and throughput of spermatogenesis. Robust epidemiologic, clinical, genetic, epigenetic, and preclinical data support these findings. Clinical studies on the impact of medically induced weight loss on serum testosterone concentrations and spermatogenesis is promising but may show differential and unsustainable results. In contrast, literature has demonstrated that weight loss after bariatric surgery is correlated with an increase in serum testosterone concentrations that is superior than that obtained with only lifestyle modifications, supporting a further metabolic benefit from surgery that may be specific to the male reproductive system. The data on sperm and semen parameters is controversial to date. Emerging evidence in the burgeoning field of genetics and epigenetics has demonstrated that paternal obesity can affect offspring metabolic and reproductive phenotypes by means of epigenetic reprogramming of spermatogonial stem cells. Understanding the impact of this reprogramming is critical to a comprehensive view of the impact of obesity on subsequent generations. Furthermore, conveying the potential impact of these lifestyle changes on future progeny can serve as a powerful tool for obese men to modify their behavior. Healthcare professionals treating male infertility and obesity need to adapt their practice to assimilate these new findings to better counsel men about the importance of paternal preconception health and the impact of novel non-medical therapeutic interventions. Herein, we summarize the pathophysiology of obesity on the male reproductive system and emerging evidence regarding the potential role of bariatric surgery as treatment of male obesity-associated gonadal dysfunction.
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Affiliation(s)
- Sana Sultan
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Ameet G. Patel
- Department of Minimal Access Surgery, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Shamsi El-Hassani
- Minimal Access and Bariatric Unit, Princess Royal University Hospital, King's College Hospital NHS Foundation Trust, Orpington, United Kingdom
| | - Benjamin Whitelaw
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Bianca M. Leca
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Royce P. Vincent
- Department of Clinical Biochemistry, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Carel W. le Roux
- Diabetes Complication Research Centre, School of Medicine and Medical Science, UCD Conway Institute, University College Dublin, Belfield, Ireland
| | - Francesco Rubino
- Department of Minimal Access Surgery, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Simon J. B. Aywlin
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Georgios K. Dimitriadis
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
- *Correspondence: Georgios K. Dimitriadis
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29
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Jäger R, Mohr AE, Carpenter KC, Kerksick CM, Purpura M, Moussa A, Townsend JR, Lamprecht M, West NP, Black K, Gleeson M, Pyne DB, Wells SD, Arent SM, Smith-Ryan AE, Kreider RB, Campbell BI, Bannock L, Scheiman J, Wissent CJ, Pane M, Kalman DS, Pugh JN, ter Haar JA, Antonio J. International Society of Sports Nutrition Position Stand: Probiotics. J Int Soc Sports Nutr 2019; 16:62. [PMID: 31864419 PMCID: PMC6925426 DOI: 10.1186/s12970-019-0329-0] [Citation(s) in RCA: 106] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 12/04/2019] [Indexed: 12/14/2022] Open
Abstract
Position statement: The International Society of Sports Nutrition (ISSN) provides an objective and critical review of the mechanisms and use of probiotic supplementation to optimize the health, performance, and recovery of athletes. Based on the current available literature, the conclusions of the ISSN are as follows: 1)Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host (FAO/WHO).2)Probiotic administration has been linked to a multitude of health benefits, with gut and immune health being the most researched applications.3)Despite the existence of shared, core mechanisms for probiotic function, health benefits of probiotics are strain- and dose-dependent.4)Athletes have varying gut microbiota compositions that appear to reflect the activity level of the host in comparison to sedentary people, with the differences linked primarily to the volume of exercise and amount of protein consumption. Whether differences in gut microbiota composition affect probiotic efficacy is unknown.5)The main function of the gut is to digest food and absorb nutrients. In athletic populations, certain probiotics strains can increase absorption of key nutrients such as amino acids from protein, and affect the pharmacology and physiological properties of multiple food components.6)Immune depression in athletes worsens with excessive training load, psychological stress, disturbed sleep, and environmental extremes, all of which can contribute to an increased risk of respiratory tract infections. In certain situations, including exposure to crowds, foreign travel and poor hygiene at home, and training or competition venues, athletes' exposure to pathogens may be elevated leading to increased rates of infections. Approximately 70% of the immune system is located in the gut and probiotic supplementation has been shown to promote a healthy immune response. In an athletic population, specific probiotic strains can reduce the number of episodes, severity and duration of upper respiratory tract infections.7)Intense, prolonged exercise, especially in the heat, has been shown to increase gut permeability which potentially can result in systemic toxemia. Specific probiotic strains can improve the integrity of the gut-barrier function in athletes.8)Administration of selected anti-inflammatory probiotic strains have been linked to improved recovery from muscle-damaging exercise.9)The minimal effective dose and method of administration (potency per serving, single vs. split dose, delivery form) of a specific probiotic strain depends on validation studies for this particular strain. Products that contain probiotics must include the genus, species, and strain of each live microorganism on its label as well as the total estimated quantity of each probiotic strain at the end of the product's shelf life, as measured by colony forming units (CFU) or live cells.10)Preclinical and early human research has shown potential probiotic benefits relevant to an athletic population that include improved body composition and lean body mass, normalizing age-related declines in testosterone levels, reductions in cortisol levels indicating improved responses to a physical or mental stressor, reduction of exercise-induced lactate, and increased neurotransmitter synthesis, cognition and mood. However, these potential benefits require validation in more rigorous human studies and in an athletic population.
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Affiliation(s)
| | - Alex E. Mohr
- College of Health Solutions, Arizona State University, Phoenix, AZ USA
| | | | - Chad M. Kerksick
- Exercise and Performance Nutrition Laboratory, School of Health Sciences, Lindenwood University, St. Charles, MO USA
| | | | - Adel Moussa
- University of Münster, Department of Physics Education, Münster, Germany
| | - Jeremy R. Townsend
- Exercise and Nutrition Science Graduate Program, Lipscomb University, Nashville, TN USA
| | - Manfred Lamprecht
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Nicholas P. West
- School of Medical Science and Menzies Health Institute of QLD, Griffith Health, Griffith University, Southport, Australia
| | - Katherine Black
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Michael Gleeson
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - David B. Pyne
- Research Institute for Sport and Exercise, University of Canberra, Canberra, ACT 2617 Australia
| | | | - Shawn M. Arent
- UofSC Sport Science Lab, Department of Exercise Science, University of South Carolina, Columbia, SC USA
| | - Abbie E. Smith-Ryan
- Applied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC USA
| | - Richard B. Kreider
- Exercise & Sport Nutrition Lab, Human Clinical Research Facility, Department of Health & Kinesiology, Texas A&M University, College Station, TX USA
| | - Bill I. Campbell
- Performance & Physique Enhancement Laboratory, University of South Florida, Tampa, FL USA
| | | | | | | | | | - Douglas S. Kalman
- Scientific Affairs. Nutrasource Diagnostics, Inc. Guelph, Guelph, Ontario Canada
| | - Jamie N. Pugh
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Tom Reilly Building, Byrom St Campus, Liverpool, UK
| | | | - Jose Antonio
- Exercise and Sport Science, Nova Southeastern University, Davie, FL USA
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30
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Pearce KL, Tremellen K. The Effect of Macronutrients on Reproductive Hormones in Overweight and Obese Men: A Pilot Study. Nutrients 2019; 11:nu11123059. [PMID: 31847341 PMCID: PMC6950136 DOI: 10.3390/nu11123059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 01/08/2023] Open
Abstract
Hypogonadal obese men find it difficult to lose weight. We investigated whether the modification of macronutrient intake can alter testosterone levels independently of the body mass index. Fasted overweight or obese fertile men were asked to consume meals of polyunsaturated fats (PUFA), monounsaturated fats (MUFA), refined carbohydrates (CHO, orange juice, OJ), whey and egg albumin and mixed meals of PUFA and CHO, PUFA and egg albumin, and CHO and egg albumin. Blood was collected at fasting, then hourly for 5 h and analysed to determine the levels of testosterone and other hormones. We found PUFA and MUFA or a mixed meal of PUFA and CHO significantly reduced serum testosterone production to a similar degree over a 5 h period. PUFA decreased serum testosterone levels by 3.2 nmol/L after 1 h compared to baseline (p = 0.023), with this suppression remaining significant up to 5 h postprandially (2.1 nmol/L; p = 0.012). The net overall testosterone levels were reduced by approximately 10 nmol/L × h by PUFA, MUFA and PUFA combined with CHO. CHO alone had little effect on testosterone levels, whereas egg albumin was able to increase them (7.4 cf 2.0 nmol/L × h). Therefore, for men wishing to optimize their testosterone levels, it may be wise to avoid a high fat intake, drink liquids such as water or OJ or even consider fasting. ANZCTR, Australia; ACTRN12617001034325.
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Affiliation(s)
- Karma L. Pearce
- School of Pharmacy and Medical Sciences, ARENA, University of South Australia, Adelaide 5001, South Australia, Australia;
- Correspondence: ; Tel.: +61-8-83021133
| | - Kelton Tremellen
- School of Pharmacy and Medical Sciences, ARENA, University of South Australia, Adelaide 5001, South Australia, Australia;
- Repromed, Dulwich 5065, South Australia, Australia
- Department of Obstetrics Gynaecology and Reproductive Medicine, Flinders University, Bedford Park 5042, South Australia, Australia
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The Role of Diet and Weight Loss in Improving Secondary Hypogonadism in Men with Obesity with or without Type 2 Diabetes Mellitus. Nutrients 2019; 11:nu11122975. [PMID: 31817436 PMCID: PMC6950423 DOI: 10.3390/nu11122975] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 11/27/2019] [Accepted: 12/02/2019] [Indexed: 12/11/2022] Open
Abstract
Despite growing recognition of the issue, obesity represents one of the most common public health problems, and its rates are still increasing globally. Among the number of comorbidities and complications associated with obesity, hypogonadism is listed, and this disorder, although frequently neglected, is characterized by a relevant impact on both quality of life and life expectancy. It is generally accepted that hypogonadism secondary to obesity is functional since it is reversible following weight loss. This review summarizes all current research examining the bidirectional relationship between excess body weight and low testosterone levels. Specifically, it evaluates the role that diet, with or without physical activity, plays in improving body weight and hypogonadism in adult and elderly men with obesity, with or without type 2 diabetes mellitus.
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32
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Romani A, Ieri F, Urciuoli S, Noce A, Marrone G, Nediani C, Bernini R. Health Effects of Phenolic Compounds Found in Extra-Virgin Olive Oil, By-Products, and Leaf of Olea europaea L. Nutrients 2019; 11:nu11081776. [PMID: 31374907 PMCID: PMC6724211 DOI: 10.3390/nu11081776] [Citation(s) in RCA: 201] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 07/26/2019] [Accepted: 07/28/2019] [Indexed: 12/31/2022] Open
Abstract
Olea europaea L. fruit is a peculiar vegetal matrix containing high levels of fatty acids (98–99% of the total weight of extra-virgin olive oil, EVOO) and low quantities (1–2%) of phenolics, phytosterols, tocopherols, and squalene. Among these minor components, phenolics are relevant molecules for human health. This review is focused on their beneficial activity, in particular of hydroxytyrosol (HT), oleuropein (OLE), oleocanthal (OLC), and lignans found in EVOO, olive oil by-products and leaves. Specifically, the cardioprotective properties of the Mediterranean diet (MD) related to olive oil consumption, and the biological activities of polyphenols recovered from olive oil by-products and leaves were described. Recent European projects such as EPIC (European Prospective Investigation into Cancer and Nutrition) and EPICOR (long-term follow-up of antithrombotic management patterns in acute coronary syndrome patients) have demonstrated the functional and preventive activities of EVOO showing the relation both between cancer and nutrition and between consumption of EVOO, vegetables, and fruit and the incidence of coronary heart disease. The data reported in this review demonstrate that EVOO, one of the pillars of the MD, is the main product of Olea europaea L. fruits; leaves and by-products are secondary but precious products from which bioactive compounds can be recovered by green technologies and reused for food, agronomic, nutraceutical, and biomedical applications according to the circular economy strategy.
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Affiliation(s)
- Annalisa Romani
- PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement, Technology and Analysis)-DiSIA, University of Florence, Via U. Schiff, 6, 50019 Sesto Fiorentino, Italy.
| | - Francesca Ieri
- PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement, Technology and Analysis)-DiSIA, University of Florence, Via U. Schiff, 6, 50019 Sesto Fiorentino, Italy
| | - Silvia Urciuoli
- PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement, Technology and Analysis)-DiSIA, University of Florence, Via U. Schiff, 6, 50019 Sesto Fiorentino, Italy
| | - Annalisa Noce
- UOC of Internal Medicine-Center of Hypertension and Nephrology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy.
| | - Giulia Marrone
- UOC of Internal Medicine-Center of Hypertension and Nephrology Unit, Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
- PhD School of Applied Medical, Surgical Sciences, University of Rome Tor Vergata, via Montpellier 1, 00133 Rome, Italy
| | - Chiara Nediani
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Roberta Bernini
- Department of Agriculture and Forest Sciences (DAFNE), University of Tuscia, Via San Camillo de Lellis, 01100 Viterbo, Italy
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Fernandez CJ, Chacko EC, Pappachan JM. Male Obesity-related Secondary Hypogonadism - Pathophysiology, Clinical Implications and Management. EUROPEAN ENDOCRINOLOGY 2019; 15:83-90. [PMID: 31616498 PMCID: PMC6785957 DOI: 10.17925/ee.2019.15.2.83] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 07/04/2019] [Indexed: 02/05/2023]
Abstract
The single most significant risk factor for testosterone deficiency in men is obesity. The pathophysiological mechanisms involved in male obesity-related secondary hypogonadism are highly complex. Obesity-induced increase in levels of leptin, insulin, proinflammatory cytokines and oestrogen can cause a functional hypogonadotrophic hypogonadism with the defect present at the level of the hypothalamic gonadotrophin-releasing hormone (GnRH) neurons. The resulting hypogonadism by itself can worsen obesity, creating a self-perpetuating cycle. Obesity-induced hypogonadism is reversible with substantial weight loss. Lifestyle-measures form the cornerstone of management as they can potentially improve androgen deficiency symptoms irrespective of their effect on testosterone levels. In selected patients, bariatric surgery can reverse the obesity-induced hypogonadism. If these measures fail to relieve symptoms and to normalise testosterone levels, in appropriately selected men, testosterone replacement therapy could be started. Aromatase inhibitors and selective oestrogen receptor modulators are not recommended due to lack of consistent clinical trial-based evidence.
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Affiliation(s)
- Cornelius J Fernandez
- Department of Endocrinology & Metabolism, Pilgrim Hospital, United Lincolnshire Hospitals NHS Trust, Boston, UK
| | - Elias C Chacko
- Department of Endocrinology, Jersey General Hospital, St Helier, Jersey
| | - Joseph M Pappachan
- Department of Endocrinology & Metabolism, Lancashire Teaching Hospitals NHS Foundation Trust, Preston, UK
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Chen C, Ling M, Lin F, Xu L, Lv ZM. Melatonin appears to protect against steroidogenic collapse in both mice fed with high‐fat diet and H
2
O
2
‐treated TM3 cells. Andrologia 2019; 51:e13323. [PMID: 31134680 DOI: 10.1111/and.13323] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/06/2019] [Accepted: 04/30/2019] [Indexed: 12/21/2022] Open
Affiliation(s)
- Chao Chen
- Department of Histology and Embryology Anhui Medical University Hefei China
- Department of Operating Room The First Affiliated Hospital of USTC (Anhui Provincial Hospital) Hefei China
| | - Meng‐yu Ling
- Department of Histology and Embryology Anhui Medical University Hefei China
| | - Fan‐hong Lin
- Department of Histology and Embryology Anhui Medical University Hefei China
| | - Ling Xu
- Department of Histology and Embryology Anhui Medical University Hefei China
| | - Zheng Mei Lv
- Department of Histology and Embryology Anhui Medical University Hefei China
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Di Daniele N. The Role of Preventive Nutrition in Chronic Non-Communicable Diseases. Nutrients 2019; 11:nu11051074. [PMID: 31096558 PMCID: PMC6567185 DOI: 10.3390/nu11051074] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 05/10/2019] [Indexed: 11/19/2022] Open
Affiliation(s)
- Nicola Di Daniele
- UOC of Internal Medicine, Center of Hypertension and Nephrology Unit, Department of Systems Medicine, University of Rome Tor Vergata, via Montpellier, 100185 Rome, Italy.
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Di Vincenzo A, Busetto L, Vettor R, Rossato M. Obesity, Male Reproductive Function and Bariatric Surgery. Front Endocrinol (Lausanne) 2018; 9:769. [PMID: 30619096 PMCID: PMC6305362 DOI: 10.3389/fendo.2018.00769] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 12/06/2018] [Indexed: 12/21/2022] Open
Abstract
Overweight and obesity are associated with several chronic complications, such as type 2 diabetes, arterial hypertension and atherosclerotic cardiovascular diseases, with relevant consequences for patients and public health systems. Reproductive function abnormalities, such as obesity-related secondary hypogonadism, erectile dysfunction and infertility, represent other abnormalities negatively affecting the quality of life of men suffering from obesity but, despite their high prevalence, these are often understated because of a general lack of awareness in clinical practice. Obesity and gonadal function are closely related, with obesity being associated with hypogonadism that is reversed by body weight reduction thus ameliorating reproductive and sexual health. Clinical studies specifically evaluating the impact of non-surgical weight loss on testosterone levels sometimes showed conflicting results, whereas extensive literature has demonstrated that weight loss after bariatric surgery is correlated with an increase in testosterone levels greater than that obtained with only lifestyle interventions, suggesting the role of surgery also for the treatment of hypogonadism in obese male. However, studies concerning the consequences of bariatric surgery on overall reproductive function in the male, including also sexual activity and fertility, are limited and data regarding long-term effects are lacking. Here we present a brief review summarizing the evidence regarding the interplay between obesity and reproductive abnormalities in the obese male, together with the role of bariatric surgery for the treatment of these complications, describing both the positive effects and the limitations of this procedure.
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Affiliation(s)
- Angelo Di Vincenzo
- Department of Medicine—DIMED, Center for the Study and Integrated Management of Obesity, Clinica Medica 3, University-Hospital of Padova, Padova, Italy
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