Indian Journal of Endocrinology and Metabolism最新文献

{"title":"Standardization of Weightage Assigned to Different Segments of the Hand X-ray for Assessment of Bone Age by the Greulich-Pyle Method.","authors":"Chirantap Oza, Anuradha V Khadilkar, Pranay Goel, Tim Aeppli, Shruti Mondkar, Nikhil Shah, Nikhil Lohiya, Hemchand Krishna Prasad, Prashant Patil, Chidvilas More, Neha Kajale, Vaman Khadilkar, Lars Sävendahl","doi":"10.4103/ijem.ijem_237_23","DOIUrl":"10.4103/ijem.ijem_237_23","url":null,"abstract":"<p><strong>Introduction: </strong>Bone age (BA) assessment is important in evaluating disorders of growth and puberty; the Greulich and Pyle atlas method (GP) is most used. We aimed to determine the weightage to be attributed by raters to various segments of the hand x-ray, namely, distal end of radius-ulna (RU), carpals, and short bones for rating bone age using the GP atlas method.</p><p><strong>Methods: </strong>692 deidentified x-rays from a previous study (PUNE-dataset) and 400 from the Radiological Society of North America (RSNA-dataset) were included in the study. Mean of BA assessed by experienced raters was termed reference rating. Linear regression was used to model reference age as function of age ratings of the three segments. The root-mean-square-error (RMSE) of segmental arithmetic mean and weighted mean with respect to reference rating were computed for both datasets.</p><p><strong>Results: </strong>Short bones were assigned the highest weightage. Carpals were assigned higher weightage in pre-pubertal PUNE participants as compared to RSNA, vice-versa in RU segment of post-pubertal participants. The RMSE of weighted mean ratings was significantly lower than for the arithmetic mean in the PUNE dataset.</p><p><strong>Conclusion: </strong>We thus determined weightage to be attributed by raters to segments of the hand x-ray for assessment of bone age by the GP method.</p>","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"160-166"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189294/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metabolic Profile of Offspring of Mothers with Gestational Diabetes Mellitus.","authors":"Nazish Malik, Ayesha Ahmad, Hamid Ashraf","doi":"10.4103/ijem.ijem_211_23","DOIUrl":"10.4103/ijem.ijem_211_23","url":null,"abstract":"<p><strong>Introduction: </strong>Gestational diabetes mellitus (GDM) is defined as diabetes diagnosed in the second or third trimester of pregnancy that was not clearly overt diabetes before gestation. Unrecognized and untreated GDM confers significantly greater maternal and fetal risk, which is largely related to the degree of hyperglycemia. The specific risks of diabetes in pregnancy include but are not limited to, spontaneous abortion, pre-eclampsia, fetal anomalies, macrosomia, neonatal hypoglycemia, hyperbilirubinemia, and respiratory distress syndrome. Additionally, GDM is also implicated in long-term metabolic derangements in the offspring in the form of obesity/overweight, hypertension, dysglycemia, insulin resistance, and dyslipidemias later in life. To determine the prevalence of anthropometric and metabolic derangements in children between 1 and 5 years of age, born to women with GDM.</p><p><strong>Methods: </strong>This hospital-based cross-sectional study was conducted between November 2019 and November 2021 at our Pediatric Endocrine Clinic. Women were diagnosed as having GDM based on the American Diabetes Association Criteria (2019). History regarding the treatment of the GDM (diet only/diet and medical treatment) and detailed physical examination, including anthropometry and blood pressure, were recorded. Blood samples were collected from children for the estimation of their metabolic profile.</p><p><strong>Results: </strong>Overweight, obesity, and severe obesity were present in 18 (11.3%), 2 (1.3%), and 2 (1.3%) children, respectively. Hypertension was found in 21 (19.4%) children. Elevated LDL, triglyceride, and total cholesterol were seen in 3 (1.9%), 84 (52.5%), and 1 (0.6%) children, respectively. Impaired fasting glucose (IFG) was found in 6 (3.8%) children, while 27 (16.9%) subjects were found to be having impaired glucose tolerance after OGTT. Insulin resistance was found in 30 (18.8%) children. GDM mothers with a higher BMI tended to have children with a higher BMI (correlation coefficient, r = .414, <i>P</i> < .001). Higher serum triglyceride levels (r = -0.034, <i>P</i> = 0.672) were recorded in children, irrespective of the BMI of their mothers. There was no significant correlation of maternal BMI with blood pressure (r = -0.134, <i>P</i> = 0.091) or with HOMA-IR (r = 0.00, <i>P</i> = 0.996) in children. However, mothers with a higher BMI had children with statistically higher fasting blood glucose (r = +0.339, <i>P</i> = <0.001) as well as blood glucose 2 hours after OGTT (r = +0.297, <i>P</i> = <0.001). This positive correlation of maternal BMI with the glucose metabolism of their offspring was observed for both male and female genders.</p><p><strong>Conclusion: </strong>Children of women with GDM had a higher BMI, and the mode of treatment for GDM did not lead to differences in childhood BMI. The higher BMI of a GDM mother is associated with altered glucose metabolism in their offspring. Deranged levels of triglyc","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"192-196"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189277/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Young Man with a Limp-Hypothyroidism Presenting with Slipped Capital Femoral Epiphysis.","authors":"Dharaneswari Hari Narayanan, Asha Ranjan, Adlyne R Asirvatham, Shriraam Mahadevan","doi":"10.4103/ijem.ijem_406_23","DOIUrl":"10.4103/ijem.ijem_406_23","url":null,"abstract":"","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"227-228"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189289/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Generation of South Indian Data for Normal Clitoral Dimensions and Anogenital Ratio in Term Neonates.","authors":"K Priyadarshini, Swathi Padankatti, Shriraam Mahadevan","doi":"10.4103/ijem.ijem_145_23","DOIUrl":"10.4103/ijem.ijem_145_23","url":null,"abstract":"<p><strong>Introduction: </strong>Assessment of genitalia is an important part of the neonatal examination. Regional, racial, and ethnic variations in phallic length have been documented. Clitoral dimensions may also show similar variations. Normal values for neonatal clitoral measurements may help the pediatrician/neonatologist to accurately diagnose clitoromegaly and underlying etiology to guide appropriate investigations. Data on clitoral measurements is limited with only one study from India (Kolkata). Hence we aimed in this study to generate south Indian data on neonatal clitoral dimensions, anogenital distance, and anogenital ratio. Two hundred and fifty two hemodynamically stable term female neonates without ambiguous genitalia/vulval masses born in a community hospital. Hospital-based cross-sectional study. 1. To measure clitoral dimensions, anogenital distance, and anogenital ratio in female neonates. 2. To correlate clitoral dimensions, anogenital distance, and ratio with anthropometric measurements, gestational age, and maternal comorbidities.</p><p><strong>Methods: </strong>Measurements were recorded using a digital vernier caliper, under strict aseptic precautions with labia majora gently separated and the baby held in a frog-leg position. Clitoral length, width, and anogenital distance were measured and anogenital ratio and clitoral index were calculated.</p><p><strong>Results: </strong>In term neonates, the mean ± SD of clitoral length (CL), clitoral width (CW), anogenital ratio (AGR) were 6.34 ± 1.75 mm, 6.39 ± 1.27 mm and 0.39 ± 0.05, respectively. The 3^rd and 97^th centiles for mean clitoral length were 3.55 and 9.93 mm, for mean clitoral width were 3.37 and 8.35 mm, and for AGR were 0.28 and 0.48, respectively. These clitoral dimensions in south Indian neonates were higher than those from East India (Kolkata), lower than Nigerian babies, and similar to Israeli neonates. Mean CL and CW had no statistical correlation with birth weight, gestational age, head circumference, or length in term neonates. A significant correlation was noted between pregnancy-induced hypertension and mean clitoral width, and between gestational diabetes and AGR.</p><p><strong>Conclusion: </strong>Normative values for clitoral dimensions (length and width) and AGR for south Indian term female neonates have been established. 97^th centiles of 9.93 mm (CL) and 8.35 mm (CW) and 0.48 mm (AGR) may be used as practical cut-offs to diagnose clitoromegaly and virilization. Clitoral measurements had no statistical correlation with birth weight, gestational age, or anthropometry. Clitoral measurements exhibit ethnic and racial differences, thus emphasizing the importance of regional cut-offs and need for more studies from different parts of India on CL.</p>","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"208-212"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of WHO 2006 Growth Standards and Synthetic Indian References in Assessing Growth in Normal Children and Children with Growth-Related Disorders.","authors":"Nimisha Shankar Dange, Vaman Khadilkar, Vrushali Kore, Shruti Mondkar, Sushil Yewale, Ketan Gondhalekar, Anuradha V Khadilkar","doi":"10.4103/ijem.ijem_380_23","DOIUrl":"10.4103/ijem.ijem_380_23","url":null,"abstract":"<p><strong>Introduction: </strong>A good screening tool, such as a growth chart, should distinguish between children with normal growth and those with perturbed growth. Suitability of synthetic Indian growth references for diagnosing growth-related disorders for under-five children has not been evaluated. To assess the validity of World Health Organization (WHO) 2006 standards vs synthetic Indian references (2019) (by comparing weight, height, body mass index (BMI), standard deviation scores (SDS) and the composite index of anthropometric failure (CIAF)) in differentiating normal children and children with growth-related disorders.</p><p><strong>Methods: </strong>Records of 2188 children (0-60 months) attending a tertiary centre paediatric outpatient department (OPD) were retrospectively studied; 1854 children were healthy and 334 were diagnosed with growth-related disorders as per the European Society for Paediatric Endocrinology (ESPE) classification. The anthropometric parameters converted to Z-scores for weight-for-age (WAZ), height-for-age (HAZ), BMI-for-age (BAZ) and a CIAF were computed using WHO and synthetic charts; Student's <i>t</i>-test was used for assessing differences and Youden's index for validity.</p><p><strong>Results: </strong>Disease status of children and anthropometric failure on WAZ, HAZ, BAZ and CIAF on both WHO and synthetic charts had a significant association (<i>P</i>-value <0.05). WAZ, HAZ on both charts and CIAF on synthetic chart had a fair to moderate agreement (Kappa statistics) with disease status as per diagnosis (<i>P</i>-value <0.05). The sensitivity and negative predictive value for all anthropometric parameters were higher for synthetic charts.</p><p><strong>Conclusion: </strong>Indian charts were more sensitive for diagnosing growth-related disorders from birth to 60 months of age when compared to WHO growth standards.</p>","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"220-226"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189285/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Role of Dietary Macronutrient Composition and Fibre Intake in Development of Double Diabetes in Indian Youth.","authors":"Chirantap Oza, Rubina Mandlik, Anuradha V Khadilkar, Ketan M Gondhalekar, Vaman V Khadilkar","doi":"10.4103/ijem.ijem_90_23","DOIUrl":"10.4103/ijem.ijem_90_23","url":null,"abstract":"<p><strong>Introduction: </strong>Insulin resistance (IR) and obesity are common presentations of double diabetes (DD) in subjects with type-1 diabetes (T1D). There is evidence that dietary composition has an impact on developing IR. Objectives were to assess the impact of macronutrient and fibre intake on glycaemic control and the role of macronutrient composition of diet in the development of DD in subjects with T1D.</p><p><strong>Methods: </strong>This cross-sectional study included 77 young adults (10-25 years) with T1D. Data related to demography, anthropometry, biochemistry and body composition were collected. Dietary data was collected by fourteen-day food diary. IR was calculated using eGDR, SEARCH and CACTI equations, and metabolic syndrome (MS) was diagnosed using the International Diabetes Federation Consensus Definition.</p><p><strong>Results: </strong>Subjects at risk of DD had higher age, leptin levels, percentage carbohydrate consumption in diet and IR. A positive association of insulin sensitivity with fibre intake and %protein intake was noted. Poor glycaemic control, adiponectin/leptin ratio, fibre intake and insulin/carbohydrate ratio were significant negative predictors of IR. Addition of dietary factors to the regression model improved the R square and percentage of subjects identified correctly. Inclusion of dietary parameters significantly improves the prediction of the risk of development of DD in subjects with T1D.</p><p><strong>Conclusion: </strong>Good glycaemic control and increased intake of dietary fibre may prevent the development of IR in subjects with T1D and reduce the burden of DD.</p>","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"213-219"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189281/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tackling the Rising Tide: Understanding the Prevalence of Childhood Obesity in India.","authors":"Jubbin Jagan Jacob","doi":"10.4103/IJEM.IJEM_144_24","DOIUrl":"10.4103/IJEM.IJEM_144_24","url":null,"abstract":"","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"101-103"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189283/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Type 1 Diabetes in Singapore: Self-Care Challenges, Diabetes Technology Awareness, Current Use, and Satisfaction, an Online Survey.","authors":"Suresh Rama Chandran, Cindy Ho, Ester Yeoh, Daphne Gardner","doi":"10.4103/ijem.ijem_369_22","DOIUrl":"10.4103/ijem.ijem_369_22","url":null,"abstract":"<p><strong>Introduction: </strong>To describe the self-care challenges, diabetes technology awareness, current use, and satisfaction among adults with type 1 diabetes and parents of children with type 1 diabetes in Singapore.</p><p><strong>Methods: </strong>An anonymous online survey was administered between November 2020 and October 2021. Data are presented as mean (standard deviation) or count (percentages). Comparisons between groups were done using the independent samples T-test.</p><p><strong>Results: </strong>251 people (176 adults, 75 parents) participated. The most challenging self-care burdens were carbohydrate counting (24.4%) among adults and insulin dose calculations (28%) among parents. Nocturnal awakenings for diabetes care of their child were a common event (25.3%). Despite high awareness about continuous glucose monitoring devices (77.8% adults, 78.7% parents) the use (24.9% adults, 55% children) remained low. Both adults and parents of children with type 1 diabetes found continuous glucose monitoring to be liberating and less restrictive. Despite overall low insulin pump use (23.9% adults, 29.3% children); satisfaction scores were higher among insulin pump users than insulin pen users (<i>P</i> = 0.02).</p><p><strong>Conclusion: </strong>Carbohydrate counting and insulin dose calculations were the most challenging self-care tasks among people with type 1 diabetes in Singapore. Diabetes technology use was relatively low in Singapore. Continuous glucose monitoring and Insulin pump users found them to be beneficial.</p>","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"28 2","pages":"167-176"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11189278/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141442572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Prolonged Use of Caffeine on Thyroid and Adrenal Glands: A Retrospective Cohort Study","authors":"Vasishtha A. Upadrasta","doi":"10.4103/ijem.ijem_313_23","DOIUrl":"https://doi.org/10.4103/ijem.ijem_313_23","url":null,"abstract":"\u0000 \u0000 \u0000 Caffeine consumption has skyrocketed in recent decades as we try to match the pace with the machines. Studies have been conducted on animals and a few on humans, mainly on the acute effects of high-dose caffeine intake. Almost none have been conducted on the chronic effects of caffeine consumption. This study involved medical professionals as case subjects, who consumed caffeine daily.\u0000 \u0000 \u0000 \u0000 This study, for 3 months, involved 96 volunteers (chosen randomly w.r.t. gender and field in the medical fraternity), including people who drank >500 mg of caffeine a day and people who consumed none. People with any comorbidities at all were excluded straight away. Two sets of blood samples were drawn and assessed. Three groups were created: group 1 (>200 mg caffeine/day), group 2 (15–200 mg caffeine/day) and group 3 (<200 mg caffeine/day).\u0000 \u0000 \u0000 \u0000 The result of the study found that exposure to caffeine at doses >200 mg/day for more than 6 months leads to a significant difference in circulating free T3 ((-0.96 pmol/L ± 0.07) = (-18.5%), 95% confidence interval (CI), P = .000024) and cortisol ((-123 nmol/L ± 9.8) = (-46.8%), 95% CI, P = .00029) hormones but shows an insignificant effect on circulating thyroid-stimulating hormone (TSH) (0.4 mIU/L, 95% CI, P = .37) and adrenocorticotrophic hormone (ACTH) ((-3.2 pg/ml ± 0.3), 95% CI, P = .53) hormones, which stay within normal physiological ranges, irrespective of the daily dose of consumption. Results also highlight that women are more susceptible to a decrement in fT3 than men (relative risk = 1.58, analysis of variance (ANOVA) F-static = 7.15, P = 0.0105).\u0000 \u0000 \u0000 \u0000 Caffeine consumption in excess of 200 mg/day, for more than or equal to 6 months, causes significant derangement in basal fT3 and cortisol hormone levels, without affecting the TSH and ACTH (regulatory) hormone levels, indicating disturbance of action at the peripheral and/or cellular levels, possibly via the paraventricular nucleus (PVN)–leptin–CAR–adenosine interactions. Women are more susceptible to a decrement in fT3 levels than men (at the same dose of caffeine).\u0000","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"21 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139783462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Prolonged Use of Caffeine on Thyroid and Adrenal Glands: A Retrospective Cohort Study","authors":"Vasishtha A. Upadrasta","doi":"10.4103/ijem.ijem_313_23","DOIUrl":"https://doi.org/10.4103/ijem.ijem_313_23","url":null,"abstract":"\u0000 \u0000 \u0000 Caffeine consumption has skyrocketed in recent decades as we try to match the pace with the machines. Studies have been conducted on animals and a few on humans, mainly on the acute effects of high-dose caffeine intake. Almost none have been conducted on the chronic effects of caffeine consumption. This study involved medical professionals as case subjects, who consumed caffeine daily.\u0000 \u0000 \u0000 \u0000 This study, for 3 months, involved 96 volunteers (chosen randomly w.r.t. gender and field in the medical fraternity), including people who drank >500 mg of caffeine a day and people who consumed none. People with any comorbidities at all were excluded straight away. Two sets of blood samples were drawn and assessed. Three groups were created: group 1 (>200 mg caffeine/day), group 2 (15–200 mg caffeine/day) and group 3 (<200 mg caffeine/day).\u0000 \u0000 \u0000 \u0000 The result of the study found that exposure to caffeine at doses >200 mg/day for more than 6 months leads to a significant difference in circulating free T3 ((-0.96 pmol/L ± 0.07) = (-18.5%), 95% confidence interval (CI), P = .000024) and cortisol ((-123 nmol/L ± 9.8) = (-46.8%), 95% CI, P = .00029) hormones but shows an insignificant effect on circulating thyroid-stimulating hormone (TSH) (0.4 mIU/L, 95% CI, P = .37) and adrenocorticotrophic hormone (ACTH) ((-3.2 pg/ml ± 0.3), 95% CI, P = .53) hormones, which stay within normal physiological ranges, irrespective of the daily dose of consumption. Results also highlight that women are more susceptible to a decrement in fT3 than men (relative risk = 1.58, analysis of variance (ANOVA) F-static = 7.15, P = 0.0105).\u0000 \u0000 \u0000 \u0000 Caffeine consumption in excess of 200 mg/day, for more than or equal to 6 months, causes significant derangement in basal fT3 and cortisol hormone levels, without affecting the TSH and ACTH (regulatory) hormone levels, indicating disturbance of action at the peripheral and/or cellular levels, possibly via the paraventricular nucleus (PVN)–leptin–CAR–adenosine interactions. Women are more susceptible to a decrement in fT3 levels than men (at the same dose of caffeine).\u0000","PeriodicalId":13353,"journal":{"name":"Indian Journal of Endocrinology and Metabolism","volume":"224 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139843321","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}