scholarly journals The Influence of BMI Levels on Phases of the Menstrual Cycle and Presumed Ovulation

2012 ◽  
Vol 79 (4) ◽  
pp. 451-459
Author(s):  
Mary Grace Lasquety ◽  
Dana Rodriguez ◽  
Richard J. Fehring
Keyword(s):  
Body Mass Index ◽  
Menstrual Cycle ◽  
Odds Ratio ◽  
Luteal Phase ◽  
High Body Mass Index ◽  
Normal Weight ◽  
Menstrual Cycles ◽  
Significant Difference ◽  
Overweight Group ◽  
One Way Anova

Obesity and high body mass index (BMI) are known to be risks for anovulation and infertility. Little is known about how BMI levels affect parameters of the menstrual cycle. The purpose of this study was to determine the influence of BMI on parameters of the menstrual cycle and the likelihood for ovulation. The participants in this study were 244 women between the ages of twenty and fifty-four (mean thirty years) who charted from one to thirty-six menstrual cycles (mean seven cycles) for a total of 2,035 cycles. Urinary luteinizing hormone (LH) threshold tests were used to estimate the day of ovulation and the lengths of the follicular and luteal phases. The 244 participants were classified as normal weight with a BMI of 18.5–24.9 kg/m2 (N = 141), overweight with a BMI of 25–29.9 kg/m2 (N = 67), and obese with a BMI of 30 kg/m2 or greater (N = 36). One-way ANOVA indicated that there was a significant difference between groups in length of the luteal phase (F = 4.62, p < 0.01) and length of menses (F = 3.03, p < 0.05). Odds ratio indicated that the combined obese and overweight group was 34 percent less likely to have a positive detected urinary LH surge. We concluded that obesity might contribute to infertility by shortening the luteal phase and decreasing the probability of ovulatory menstrual cycles.

scholarly journals Is body mass index associated with irregular menstruation: A questionnaire study?

2020 ◽  
Author(s):  
Yunhui Tang ◽  
Yan Chen ◽  
Hua Feng ◽  
Chen Zhu ◽  
Mancy Tong ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Menstrual Cycle ◽  
Blood Loss ◽  
Body Mass ◽  
Odds Ratio ◽  
Normal Weight ◽  
Menstrual Blood ◽  
Menstrual Blood Loss ◽  
Menstrual Cycles ◽  
Significant Difference

Abstract Background: Irregular menstrual cycles including the length of cycles and menses, and heavy menstrual blood loss are linked to many gynaecological diseases. Obesity has been reported to be associated with irregular menstrual cycles. However, to date, most studies investigating this association are focused on adolescence or university students. Whether this association is also seen in adult women, especially women who had a history of birth has not been fully investigated. Methods: Questionnaire data were collected from 1012 women aged 17 to 53 years. Data on age, weight and height, gravida, the length of menstrual cycles and menses, and the number of pads used during menses were collected. Factors associated with menstrual cycle according to BMI categories were analysed.Results: There were no differences in the length of menstrual cycles and menses in women of different body mass index (BMI) groups. However, there was a significant difference in menstrual blood loss in women of different BMI categories. The odds ratio of having heavy menstrual blood loss in obese women was 2.28 (95% CL: 1.244, 4.193), compared to women with normal weight, while there was no difference in the odds ratio of having heavy menstrual blood loss in overweight, compared to normal weight, women. In contrast, the odds ratio of having heavy menstrual blood loss in underweight women was 0.4034 (95% CL: 0.224, 0.725), compared to women with normal weight. Conclusion: Although BMI was not correlated with the length of menstrual cycle and menses, BMI is positively associated with menstrual blood loss. Our data suggest that BMI influences menstrual blood loss in women of reproductive age and weight control is important in women’s reproductive years.

scholarly journals Is body mass index associated with irregular menstruation: A questionnaire study?

2020 ◽  
Author(s):  
Yunhui Tang ◽  
Yan Chen ◽  
Hua Feng ◽  
Chen Zhu ◽  
Mancy Tong ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Menstrual Cycle ◽  
Blood Loss ◽  
Body Mass ◽  
Odds Ratio ◽  
Normal Weight ◽  
Menstrual Blood ◽  
Menstrual Blood Loss ◽  
Menstrual Cycles ◽  
Significant Difference

Abstract Background: Irregular menstrual cycles including the length of cycles and menses, and heavy menstrual blood loss are linked to many gynaecological diseases. Obesity has been reported to be associated with irregular menstrual cycles. However, to date, most studies investigating this association are focused on adolescence or university students. Whether this association is also seen in adult women, especially women who had a history of birth has not been fully investigated. Methods: Questionnaire data were collected from 1012 women aged 17 to 53 years. Data on age, weight and height, gravida, the length of menstrual cycles and menses, and the number of pads used during menses were collected. Factors associated with menstrual cycle according to BMI categories were analysed.Results: There were no differences in the length of menstrual cycles and menses in women of different body mass index (BMI) groups. However, there was a significant difference in menstrual blood loss in women of different BMI categories. The odds ratio of having heavy menstrual blood loss in obese women was 2.28 (95%CL: 1.244, 4.193), compared to women with normal weight, while there was no difference in the odds ratio of having heavy menstrual blood loss in overweight, compared to normal weight, women. In contrast, the odds ratio of having heavy menstrual blood loss in underweight women was 0.4034 (95%CL: 0.224, 0.725), compared to women with normal weight. Conclusion: Although BMI was not correlated with the length of menstrual cycle and menses, BMI is positively associated with menstrual blood loss. Our data suggest that BMI influences menstrual blood loss in women of reproductive age and weight control is important in women’s reproductive years.

scholarly journals Is body mass index associated with irregular menstruation: a questionnaire study?

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Yunhui Tang ◽  
Yan Chen ◽  
Hua Feng ◽  
Chen Zhu ◽  
Mancy Tong ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Menstrual Cycle ◽  
Blood Loss ◽  
Body Mass ◽  
Odds Ratio ◽  
Normal Weight ◽  
Menstrual Blood ◽  
Menstrual Blood Loss ◽  
Menstrual Cycles ◽  
Significant Difference

Abstract Background Irregular menstrual cycles including the length of cycles and menses, and heavy menstrual blood loss are linked to many gynaecological diseases. Obesity has been reported to be associated with irregular menstrual cycles. However, to date, most studies investigating this association are focused on adolescence or university students. Whether this association is also seen in adult women, especially women who had a history of birth has not been fully investigated. Methods Questionnaire data were collected from 1012 women aged 17 to 53 years. Data on age, weight and height, gravida, the length of menstrual cycles and menses, and the number of pads used during menses were collected. Factors associated with menstrual cycle according to BMI categories were analysed. Results There were no differences in the length of menstrual cycles and menses in women of different body mass index (BMI) groups. However, there was a significant difference in menstrual blood loss in women of different BMI categories. The odds ratio of having heavy menstrual blood loss in obese women was 2.28 (95% CL: 1.244, 4.193), compared to women with normal weight, while there was no difference in the odds ratio of having heavy menstrual blood loss in overweight, compared to normal weight, women. In contrast, the odds ratio of having heavy menstrual blood loss in underweight women was 0.4034 (95% CL: 0.224, 0.725), compared to women with normal weight. Conclusion Although BMI was not correlated with the length of menstrual cycle and menses, BMI is positively associated with menstrual blood loss. Our data suggest that BMI influences menstrual blood loss in women of reproductive age and weight control is important in women’s reproductive years.

scholarly journals Correlation between circulating leptin and luteinizing hormone during the menstrual cycle in normal-weight women

1998 ◽  
pp. 190-194 ◽  
Author(s):  
T Teirmaa ◽  
V Luukkaa ◽  
J Rouru ◽  
M Koulu ◽  
R Huupponen
Keyword(s):  
Menstrual Cycle ◽  
Luteinizing Hormone ◽  
Young Women ◽  
Hormonal Therapy ◽  
Normal Weight ◽  
Reproductive Hormones ◽  
Major Influence ◽  
Serum Leptin ◽  
Menstrual Cycles ◽  
Significant Difference

OBJECTIVE: Leptin is the hormonal product of the ob gene. It is expressed in adipocytes and participates in the regulation of food intake and metabolism. Since leptin also seems to signal metabolic information to the reproductive system, we studied the association between reproductive hormones and plasma leptin in normal-weight young women. DESIGN: Eight young women with normal menstrual cycles (body mass index (BMI) 21.2 +/- 1.6 kg/m2) and eight young women using hormonal contraception (BMI 21.4 +/- 1.1 kg/m2) were studied. Furthermore, six women with normal menstrual cycles and no hormonal therapy (BMI 20.7 +/- 1.2 kg/m2) were studied around the time of the anticipated ovulation. METHODS: Serum leptin, estradiol, progesterone and luteinizing hormone (LH) concentrations were measured with radioimmunoassays. RESULTS: Serum leptin concentrations were similar at the beginning of the cycle, at the time of the anticipated ovulation and at the end of the menstrual cycle (10.2 +/- 7.1, 10.7 +/- 7.0 and 11.8 +/- 6.9 microg/l respectively). There was an association between leptin and LH concentrations (r= 0.37, P< 0.01) when values recorded during different time points during the cycle were plotted with each other. There was no change in serum leptin in samples taken at different times of the cyclic treatment with an oral contraceptive. There was no significant difference in mean serum leptin concentrations between women using oral contraceptives and women with no hormonal therapy. CONCLUSIONS: There is a link between serum leptin and LH concentrations during the menstrual cycle. Variations in circulating estrogen and/or progesterone concentrations have no major influence on circulating leptin in young female subjects.

EVALUATION OF CHANGES IN CARDIORESPIRATORY FUNCTIONS DURING DIFFERENT PHASES OF THE MENSTRUAL CYCLE IN YOUNG WOMEN

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Shehnaz Shaikh
Keyword(s):  
Menstrual Cycle ◽  
Sample Size ◽  
Young Women ◽  
Luteal Phase ◽  
Uterine Wall ◽  
Normal Weight ◽  
Follicular Phase ◽  
Menstrual Phase ◽  
Granulose Cells ◽  
Efficiency Test

Introduction: Menstrual cycle or menstruation involved discharge of sanguinous fluid and a sloughing of uterine wall. In women menstruation occurs at regular intervals on an average of 28 days, although most women gave a history of regular intervals of 28 to 30 days. About 10% -15% of women showed cycle at the precise 28 ± 2 days intervals when menstrual calendar was utilized. Normally in young women in different phases of ovarian cycles the plasma levels of estrogen vary. Ovulation occurs in the first 12-13th day of menstrual cycle, which is termed estrogen surge and second occurs in mid-luteal phase. During mid cycle or follicular phase of menstrual cycle the plasma concentration of progesterone is very low about 0.9 ng/mL. its level starts rising owing to secretion from the granulose cells. During luteal phase progesterone level reaches its peak value of 18 ng/mL and its level fall to a minimum value toward the end of the cycle. Estrogen affects local and systemic vasodilation. The menstrual cycle envelops two fundamental stages, the follicular stage (FP) and the luteal stage (LP). The follicular stage can part advance into two substages; the early FP, which is characterised with moo concentrations of both the key hormones estrogen and progesterone; and the mid FP where estrogen is tall autonomously from progesterone. The LP is epitomized by tall concentration of both estrogen and progesterone. These two fundamental stages are isolated by a soak surge in luteinizing hormone activating ovulation. These recurrent changes are said to be frequency unsurprising while long time. Aim: The main aim of this study is to evaluate the Cardiorespiratory functions changes during different Phases of Menstrual Cycle.   Material and methods: In this study, 20 with normal weight, 20 with obese and 20 with overage were included and taken them as a sample size. In this study all the young women those were recruited as a sample size are unmarried, undergraduate female student with the between the age group of 18-22years, having regular 28+6 days menstrual cycle for at least last 6months prior to this study. For the collection of data all the participants were instructed to attend the physiology lab department during each of three different phases. Day-2 during menstrual phase, Day-7, during follicular phase and Day-22 during luteal phase and the following parameters were recorded as Anthropometric measurements, measuring of pulse rate and blood pressure and cardiac efficiency test. Result: In general, work out proficiency changed essentially amid the distinctive stages of the menstrual cycle with the most elevated amid luteal stage and least amid menstrualo stage. There was no critical contrast in impact test amid menstrual stage, follicular stage and luteal stage of menstrual cycle among three bunches of people. Conclusion: We have watched noteworthy increment in cardiac and respiratory proficiency within the luteal stage of the menstrual cycle in ordinary weight people. Lower wellness levels were watched in overweight and stout females. In this manner hone of customary work out and admissions of solid slim down which offer assistance in lessening the weight and in turn the BMI will offer assistance in improving the physical wellness of the people. Keywords: Cardiorespiratory, Menstrual cycle, expiratory blast test

scholarly journals OP0220 ASSESSING THE EFFECT OF INCREASED BODY MASS INDEX ON RESPONSE TO TNF INHIBITORS IN ESTABLISHED RHEUMATOID ARTHRITIS: RESULTS FROM THE METEOR DATABASE

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 137.1-137
Author(s):  
M. Dey ◽  
S. S. Zhao ◽  
R. J. Moots ◽  
R. B. M. Landewé ◽  
N. Goodson
Keyword(s):  
Rheumatoid Arthritis ◽  
Body Mass Index ◽  
Body Mass ◽  
Personalised Medicine ◽  
Normal Weight ◽  
Sensitivity Analyses ◽  
Established Rheumatoid Arthritis ◽  
Eular Response ◽  
Significant Difference ◽  
Das28 Remission

Background:Rheumatoid arthritis (RA) is associated with increased body mass index (BMI)- 60% of patients are either overweight or obese. Obesity in RA has been shown to predict reduced response to biologic therapy including tumour-necrosis-factor inhibitors (TNFi) [1]. However, it is not clear whether increased BMI influences response to all TNFi drugs in RA.Objectives:1.To explore whether BMI is associated with response to TNFi in patients with established rheumatoid arthritis (estRA), including those newly-starting on these drugs.Methods:Participants with estRA (>1year since diagnosis) taking biologic medications, registered on METEOR (international database of RA patients), 2008-2013, were included. EULAR response, DAS28 remission (including components), and treatment regimens were recorded at baseline, 6, and 12 months. WHO definitions of overweight (BMI≥ 25) and obese (BMI≥30) were explored as predictors of TNFi response (good EULAR response and DAS28 remission) using normal BMI as comparator. Logistic and linear regression models (controlling for age, gender, smoking, and baseline outcomes) and sensitivity analyses were performed. Subgroup analyses were performed for grouped TNFi and individual TNFi (infliximab, IFX; adalimumab, ADA; etanercept, ETN).Results:247 patients with estRA were taking a biologic at 6 months, and 231 patients were taking a biologic at 12 months. Obese patients taking any biologic were significantly less likely to achieve DAS28 remission (OR 0.33 [95%CI 0.12-0.80]) or good EULAR response (OR 0.37 [95%CI 0.16-0.81]) after 6 months, compared to those of normal BMI; this was also demonstrated in those co-prescribed methotrexate (DAS28 remission: OR 0.23 [95%CI 0.07-0.62]; good EULAR response: OR 0.39 [95%CI 0.15-0.92]). These associations did not remain statistically significant at the 12 months assessment.Regarding specific anti-TNF therapies, RA patients treated with monoclonal antibody (-mab) TNFis (IFX/ADA/ GOL) were significantly less likely to achieve good EULAR response at 6 months if they were obese RA (n=38), compared to those of normal weight (n=44) (OR 0.17 [95%CI 0.03-0.59]). A similar non-significant difference was demonstrated for DAS28 remission, and 12-month remission. Specifically, obese individuals were significantly less likely to achieve good EULAR response at 6 months with IFX (OR 0.09 [95%CI 0.00-0.61]; n=20), and significantly less likely to achieve DAS28 remission at 6 months when newly-starting ADA (OR 0.14 [95%CI 0.01-0.96]; n=17), compared to those of normal weight. There were no significant differences in remission outcomes between individuals of different BMI taking ETN. A small number of individuals stopped taking their respective biologic after 6months; reason for cessation was not recorded.Similar outcomes were seen in patients already established on anti-TNF therapy, with overweight and obese individuals less likely overall to be in DAS28 remission at all time points.Conclusion:In established RA, obesity is associated with reduced treatment response to -mab TNFi. No association between increased BMI and response to ETA was observed. Using BMI to direct biologic drug choice could prove to be a simple and cost-effective personalised-medicine approach to prescribing.References:[1]Schäfer M, Meißner Y, Kekow J, Berger S, Remstedt S, Manger B, et al. Obesity reduces the real-world effectiveness of cytokine-targeted but not cell-targeted disease-modifying agents in rheumatoid arthritis. Rheumatology. 2019 Nov 20.Disclosure of Interests:Mrinalini Dey: None declared, Sizheng Steven Zhao: None declared, Robert J Moots: None declared, Robert B.M. Landewé Consultant of: AbbVie; AstraZeneca; Bristol-Myers Squibb; Eli Lilly & Co.; Galapagos NV; Novartis; Pfizer; UCB Pharma, Nicola Goodson: None declared

scholarly journals Body mass index and clinical outcomes in patients with intracerebral haemorrhage: results from the China Stroke Center Alliance

2021 ◽  
pp. svn-2020-000534
Author(s):  
Zhentang Cao ◽  
Xinmin Liu ◽  
Zixiao Li ◽  
Hongqiu Gu ◽  
Yingyu Jiang ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Hospital Mortality ◽  
Body Mass ◽  
Intracerebral Haemorrhage ◽  
Final Analysis ◽  
Normal Weight ◽  
Discharge Disposition ◽  
Increased Risk ◽  
Significant Difference ◽  
Stroke Center

Background and aimObesity paradox has aroused increasing concern in recent years. However, impact of obesity on outcomes in intracerebral haemorrhage (ICH) remains unclear. This study aimed to evaluate association of body mass index (BMI) with in-hospital mortality, complications and discharge disposition in ICH.MethodsData were from 85 705 ICH enrolled in the China Stroke Center Alliance study. Patients were divided into four groups: underweight, normal weight, overweight and obese according to Asian-Pacific criteria. The primary outcome was in-hospital mortality. The secondary outcomes included non-routine discharge disposition and in-hospital complications. Discharge to graded II or III hospital, community hospital or rehabilitation facilities was considered non-routine disposition. Multivariable logistic regression analysed association of BMI with outcomes.Results82 789 patients with ICH were included in the final analysis. Underweight (OR=2.057, 95% CI 1.193 to 3.550) patients had higher odds of in-hospital mortality than those with normal weight after adjusting for covariates, but no significant difference was observed for patients who were overweight or obese. No significant association was found between BMI and non-disposition. Underweight was associated with increased odds of several complications, including pneumonia (OR 1.343, 95% CI 1.138 to 1.584), poor swallow function (OR 1.351, 95% CI 1.122 to 1.628) and urinary tract infection (OR 1.532, 95% CI 1.064 to 2.204). Moreover, obese patients had higher odds of haematoma expansion (OR 1.326, 95% CI 1.168 to 1.504), deep vein thrombosis (OR 1.506, 95% CI 1.165 to 1.947) and gastrointestinal bleeding (OR 1.257, 95% CI 1.027 to 1.539).ConclusionsIn patients with ICH, being underweight was associated with increased in-hospital mortality. Being underweight and obese can both increased risk of in-hospital complications compared with having normal weight.

scholarly journals Association between body mass index and fragility fracture in postmenopausal women: a cross-sectional study using Korean National Health and Nutrition Examination Survey 2008–2009 (KNHANES IV)

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jihan Kim ◽  
Sami Lee ◽  
Sung Soo Kim ◽  
Jong-Pyo Lee ◽  
Jong Sung Kim ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Vertebral Fracture ◽  
Fragility Fracture ◽  
Odds Ratio ◽  
Fragility Fractures ◽  
Normal Weight ◽  
Obese Group ◽  
Nutrition Examination Survey ◽  
Korean Women ◽  
Health And Nutrition

Abstract Background The present study examined the relationship between body mass index (BMI) and the risk for fragility fractures in postmenopausal Korean women. Methods Among subjects who participated in the 4th Korea National Health and Nutrition Examination Survey (2008–2009), 2114 women ≥ 40 years of age were included. BMI was based on standards set by the Korean Society for the Study of Obesity, as follows: < 18.5 kg/m2, underweight; 18.5 ≤ to < 25 kg/m2, normal weight; and ≥ 25 kg/m2, obese. Subjects were also divided into three groups according to the location of fragility fracture: spine, hip, or wrist. Results The mean (± SD) rate of fragility fracture was significantly different among the three groups: 5.9 ± 2.9% (underweight), 1.1 ± 0.3% (normal weight), and 3.0 ± 0.7% (obese) (p = 0.001). After correcting for age, family history, and treatment history of osteoporosis and rheumatoid arthritis, smoking and drinking status, and level of exercise, multivariable regression analysis revealed that the odds ratio for fragility fracture in the underweight group was 5.48 [95% confidence interval (CI) 1.80–16.73] and 3.33 (95% CI 1.61–6.87) in the obese group. After subdividing fragility fractures into vertebral and non-vertebral, the odds ratio for vertebral fracture in the underweight group was 5.49 (95% CI 1.31–23.09) times higher than that in the normal weight group; in the obese group, the non-vertebral fracture odds ratio was 3.87 (95% CI 1.45–10.33) times higher. Analysis of non-vertebral fractures in the obese group revealed an odds ratio for fracture 22.05 (95% CI 1.33–365.31) times higher for hip fracture and 3.85 (95% CI 1.35–10.93) times higher for wrist fracture. Conclusions Obesity and underweight increased the risk for fragility fractures in postmenopausal Korean women.

Assessment of choroidal vascularity index during the menstrual cycle

2021 ◽  
pp. 112067212110576
Author(s):  
Nazife Aşikgarip ◽  
Emine Temel ◽  
Kemal Örnek
Keyword(s):  
Optical Coherence Tomography ◽  
Menstrual Cycle ◽  
Prospective Study ◽  
Luteal Phase ◽  
Choroidal Thickness ◽  
Optical Coherence ◽  
Menstrual Cycles ◽  
Healthy Women ◽  
Luminal Area ◽  
Choroidal Structure

Purpose To explore the effect of menstrual cycle on choroidal vascularity index (CVI). Methods Thirty six eyes of 36 healthy women were included in this prospective study. The menstrual cycles were regular and ranged from 28 to 30 days in length. Optical coherence tomography images were obtained in 3 different phases of the menstrual cycle. The choroidal thickness (CT), total choroidal area, luminal area, stromal area, and CVI were quantified. Results Mean subfoveal, nasal and temporal CT were significantly changed in mid-luteal phase in comparison to early follicular (p = 0.018, p = 0.006 and p = 0.001, respectively) and ovulatory phases (p = 0.037, p = 0.037, and p = 0.035, respectively). Mean CVI showed a significant change in mid-luteal phase when compared with early follicular (p = 0.001) and ovulatory phases (p = 0.036). Conclusion CVI seemed to be affected in mid-luteal phase of menstrual cycle. This should be considered while analyzing choroidal structure in otherwise healthy women.

scholarly journals Frequency of Selenomonas Noxia in Oral Microbiota of Obese and Normal Weight People in Duhok-Iraq

2019 ◽  
Vol 7 (4) ◽  
pp. 120-124
Author(s):  
Roshna M. Qadir ◽  
Mahde S. Abdulrahman
Keyword(s):  
Oral Bacteria ◽  
Normal Weight ◽  
Oral Microbiome ◽  
Oral Microbiota ◽  
Obese People ◽  
Overweight People ◽  
Significant Difference ◽  
Overweight Group ◽  
Oral Carriage ◽  
Selenomonas Noxia

Obesity represents one of the major problematic health issues worldwide. Recent evidences suggest that obesity is related with the alteration of the oral microbiome. The aim of this study was to measure the salivary bacterial Selenomonas noxia in Duhok population. A total of 155 saliva samples were collected from individuals (aged between 19-35 years) of both genders (86 females and 69 males). The individuals were divided into three groups (obese, overweight, and normal weight) based on their body mass index. Bacterial genomic DNA was extracted from saliva samples. Molecular detections of Selenomonas noxia were performed by the polymerase chain reaction. Among the 155 participants, 34.1% were obese, 26.4% overweight and 39.3% normal weight individuals. The prevalence rate of oral S. noxia among all people was 82.6%. The highest rate of S. noxia was in obese people (86.8%), followed by overweight (85.4%) and normal weight people (77%). The prevalence of S. noxia in overweight people was statistically significant in compare with the normal weight people (p<0.0001). Moreover, the oral carriage of S. noxia was highest among the overweight females (94.5%) followed by obese females (88.9%). However, no significant difference was found compared to males. The result revealed that it is possible to assume that the expansion of S. noxia in saliva is due to obesity. Moreover, the composition of salivary microbiome may lead to the risk that the overweight group is at risk of future obesity. However, further investigations are required with larger sample and participants with different socioeconomic status in order to address the exact link between obesity and oral bacteria. This could lead to a new and promising therapeutic way for improving human's health.  

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