Correction: Sigala et al. A Comprehensive Investigation of Steroidogenic Signaling in Classical and New Experimental Cell Models of Adrenocortical Carcinoma. Cells 2022, 11, 1439

The authors made the following changes to their paper [...].

RF21 | PSAT77 ROLE OF THE TRANSCRIPTION FACTOR HHEX IN INNER ADRENAL CORTEX HOMEOSTASIS AND RESPONSE TO PROGESTERONE SIGNALING

Congenital adrenal hyperplasia (CAH) is a set of defects in cortisol synthesis due to mutations in genes encoding steroidogenic enzymes. Consequently, the loss of glucocorticoid-mediated negative feedback on the HPA axis leads to chronically elevated ACTH (Adrenocorticotropin Hormone) secretion. The sustained ACTH elevation, in turn, stimulates proliferation and hypertrophy of the adrenal cortex and leads to overproduction of androgens.

To study the complexity of the ACTH-responsive cell population in the adrenal cortex, we performed single-cell RNA sequencing of the steroidogenic lineage in the adult mouse adrenal. We identified the transcription factor HHEX as a gene with restricted expression in the ACTH-responsive zona fasciculata. Although the role of HHEX in adrenal biology is completely unknown, a meta-analysis identified a germ-line variant of uncertain significance near the gene HHEX associated with increased DHEAS (adrenal-specific androgen) in human serum samples, which led us to hypothesize that HHEX contributes to the unique function of the ACTH-responsive inner cortex.

To investigate the mechanisms by which HHEX controls adrenal differentiation and homeostasis, we generated genetically modified mice harboring a deletion of the Hhex gene in the adrenal cortex. Hhex KO mice exhibited progressive adrenomegaly by 15 weeks of age, accompanied by hypertrophy prominent in the inner cortex and disruption of the endothelial organization. Expression of the transcription factor Nr5a1/Sf-1 and steroidogenic enzymes involved in corticosterone production were significantly upregulated at 6 weeks old, prior to adenomegaly, suggesting a precocious increase in cell production of glucocorticoids. For insights into the signaling pathways controlled by HHEX, we analyzed global transcriptional changes during loss of Hhex and found dramatic downregulation of members of the membranous progesterone receptor family (PAQR). PAQR signaling has been implicated in the downregulation of cAMP, a primary mediator of ACTH signaling, and thereby could, in part, drive the increase in steroidogenesis in Hhex KO mice.

These findings suggest that the inner cortex contains a progesterone-responsive cell population in which HHEX provides additional fine-tuning of ACTH-driven cAMP signaling by progesterone and derivatives. Since we observed an increase in Hhex expression in a mouse model of CAH, experiments are now ongoing to assess the implication of HHEX and autocrine progesterone signaling in contributing to the hypertrophy and steroidogenic phenotype observed in CAH.

Presentation: Saturday, June 11, 2022 1:00 p.m. - 3:00 p.m., Sunday, June 12, 2022 12:54 p.m. - 12:59 p.m.

COVID-19 in Fabry disease: a reference center prospective study

Background

During the coronavirus disease-19 (COVID-19) pandemic, vulnerable populations must be identified to prevent increased mortality. Fabry disease (FD) is a rare X-linked lysosomal storage disorder leading to chronic kidney disease (CKD), cardiomyopathy, pneumonopathy and premature strokes. Little is known whether SARS-CoV-2 infection bears a particular risk for FD patients.

Methods

During pandemic (02.2020–03.2021) we have regularly followed 104 unvaccinated FD patients. In 61/104, titre of serum antibodies against SARS-CoV-2 were measured and SARS-CoV-2 PCR test was performed in symptomatic patients or in case of positivity of other family members. The symptoms and duration of COVID-19 were reported by the patients or the treating physician.

Results

No deaths or intensive care unit hospitalizations occurred. 13/104 (12.5%) were diagnosed with SARS-CoV-2 infection (16.7% (4/24) men 12.2% (6/49) women of classic phenotype, 25% (3/12) of the men and 0% (0/8) of the women of later- onset phenotype). Of those, 2/13 (15.4%) patients—both kidney transplant recipients—developed severe COVID-19, were hospitalized, and required a high-flow oxygen mask. The rest either developed mild COVID-19 manifestations (8/13, 61.5%) or were asymptomatic (3/13, 23.1%). 2/13 (15.4%) of the patients experienced Fabry pain crisis and 3/13 (23.1%) long COVID-19 like symptoms.

Conclusions

Similar to the general population, in FD patients the risk for severe COVID-19 seems to be driven by the immune system rather than by FD itself. Immunosuppression in kidney transplant recipients represented the highest risk in this population.

Supplementary Information

The online version contains supplementary material available at 10.1186/s13023-022-02386-7.

A Comprehensive Investigation of Steroidogenic Signaling in Classical and New Experimental Cell Models of Adrenocortical Carcinoma

Adrenocortical carcinoma is a heterogeneous and aggressive cancer that originates from steroidogenic cells within the adrenal cortex. In this study, we have assessed for the preclinical gold standard NCI-H295 in direct comparison with the more recently established MUC-1 and a here newly reported ACC cell line (TVBF-7) the mutational status of important driver genes (TP53, MEN1, PRKAR1A, CTNNB1, APC, ZNRF-3, IGF-2, EGFR, RB1, BRCA1, BRCA2, RET, GNAS and PTEN), Wnt-signaling specificities (CTNNB1 mutation vs. APC mutation vs. wildtype), steroidogenic-(CYP11A1, CYP17A1, HSD3B2, HSD17B4, CYP21A2, CYP11B1, CYP11B2, MC2R, AT1R) and nuclear-receptor-signaling (AR, ER, GCR), varying electrophysiological potentials as well as highly individual hormone secretion profiles (Cortisol, Aldosterone, DHEA, DHEAS, Testosterone, 17-OH Progesterone, among others) which were investigated under basal and stimulated conditions (ACTH, AngII, FSK). Our findings reveal important genetic and pathophysiological characteristics for these three cell lines and reveal the importance of such cell-line panels reflecting differential endocrine functionalities to thereby better reflect clinically well-known ACC patient heterogeneities in preclinical studies.

Can dysglycemia in OGTT be predicted by baseline parameters in patients with PCOS?

Background

Polycystic ovary syndrome (PCOS) is considered a risk factor for the development of type 2 diabetes mellitus (T2DM). However, which is the most appropriate way to evaluate dysglycemia in women with PCOS and who are at increased risk are as yet unclear.

Aim of the study

To determine the prevalence of T2DM, impaired glucose tolerance (IGT), and impaired fasting glucose (IFG) in PCOS women and potential factors to identify those at risk.

Subjects and methods

The oral glucose tolerance test (OGTT), biochemical/hormonal profile, and ovarian ultrasound data from 1614 Caucasian women with PCOS and 362 controls were analyzed in this cross-sectional multicenter study. The data were categorized according to age and BMI.

Results

Dysglycemia (T2DM, IGT, and IFG according to World Health Organization criteria) was more frequent in the PCOS group compared to controls: 2.2% vs 0.8%, P = 0.04; 9.5% vs 7.4%, P = 0.038; 14.2% vs 9.1%, P = 0.002, respectively. OGTT was essential for T2DM diagnosis, since in 88% of them basal glucose values were inconclusive for diagnosis. The presence of either T2DM or IFG was irrespective of age (P = 0.54) and BMI (P = 0.32), although the latter was associated with IGT (P = 0.021). There was no impact of age and BMI status on the prevalence of T2DM or IFG. Regression analysis revealed a role for age, BMI, fat deposition, androgens, and insulin resistance for dysglycemia. However, none of the factors prevailed as a useful marker employed in clinical practice.

Conclusions

One-third of our cohort of PCOS women with either T2DM or IGT displayed normal fasting glucose values but without confirming any specific predictor for dysglycemic condition. Hence, the evaluation of glycemic status using OGTT in all women with PCOS is strongly supported.

Endocrine disorders in patients with Fabry disease: insights from a reference centre prospective study

CONTEXT

Fabry Disease (FD) is a rare X-linked storage disease characterised by a-galactosidase A deficiency and diffuse organ accumulation of glycosphingolipids. Enzyme replacement and chaperone therapies are only partially effective. It remains unclear if FD-related endocrine disorders contribute to the observed morbidity.

OBJECTIVE

To investigate the function of the endocrine system in patients with FD.

DESIGN

We conducted an observational prospective study from 2017 to 2020.

SETTING AND PATIENTS

We included 77 patients with genetically confirmed FD (27 men, 20/27 Classic, 7/26 Late Onset phenotype, 50 women, 41/50 and 9/50 respectively), who are systematically followed by our reference centre.

RESULTS

36/77 (46.8%) patients had VitD deficiency (25(0H)VitD <20 μg/L) despite the fact that 19/36 (52.8%) were substituted with cholecalciferol. Only 21/77 (27.3%) patients had normal VitD levels without VitD substitution. 11/77 (14.3%) had significant hypophosphatemia (p < 0.80 mmol/L). Three new cases (3.9%) of subclinical, two (2.6%) of overt and six (7.8%) of known hypothyroidism were identified. Of note, men had significantly higher renin levels than women [61.4 (26.1-219.6) vs.25.4 (10.9-48.0) mU/L, p = 0.003]. There were no major abnormalities in adrenal, growth and sex-hormone axes. Patients of Classic phenotype had significantly higher High-Density Lipoprotein Cholesterol (HDL-C) levels (p = 0.002) and in men those levels were positively correlated with globotriaosylsphingosin (Lyso-Gb3) values. 10/77 (13%) of the patients were underweight.

CONCLUSIONS

VitD supplementation should be considered for all patients with FD. Thyroid screening should be routinely performed. Malnutrition should be prevented or treated, particularly in Classic phenotype patients. Overall, our data suggest that FD specialists should actively seek and diagnose endocrine disorders in their patients.

Treatment of alopecia totalis/universalis/focalis with vitamin D and analogs: Three case reports and a literature review

BACKGROUND

Alopecia areata (AA) is an inflammatory disease with autoimmune, environmental, and inherited components directed at the hair follicle, either limited to patchy hair loss over the scalp (Focalis, AF), total loss of scalp hair (Totalis, AT), or total loss of both scalp and body hair (Universalis, AU). Despite multiple treatment modalities, no therapy exists. Vitamin D deficiency in patients with AA/AT/AF influences disease severity and duration, inversely correlating with inflammation histologically.

CASE SUMMARY

Three girls presented with AT (P1), AU (P2), and AF (P3) at the ages of 1, 5, and 5 years, respectively. For P1-P2, all available treatments implemented for 2 years had failed. We started an initial 6-mo repletion with oral cholecalciferol 2000/4000 IU/d, with no apparent effect. Then we attempted immunomodulation using oral calcitriol and its analog paricalcitol. On calcitriol, 0.5 mcg/d P1 regrew hair within 6 mo. After 4 years, a relapse with loss of eyebrow hair was resolved after doubling the calcitriol dose to 0.5 mcg × 2/d; the results have been maintained for 6 years to date. On calcitriol, 0.25 mcg × 3/d P2 led to the development of asymptomatic hypercalcemia-hypercalciuria, which was immediately resolved by switching to paricalcitol 2 mcg × 3/d; mild tolerable hypercalciuria was maintained. Hair regrowth was observed at 6 mo, stabilizing only as fur at 12 mo. AF in P3 was resolved completely within 3 mo on a daily high dose (8000 IU) of cholecalciferol.

CONCLUSION

Vitamin D may have immunomodulating therapeutic impact on AT/AU/AF, which needs to be explored with further pilot clinical trials.

Risk of type 2 diabetes mellitus in polycystic ovary syndrome is associated with obesity: a meta-analysis of observational studies

PURPOSE

The exact risk of type 2 diabetes mellitus (T2DM) in women with polycystic ovary syndrome (PCOS) is unknown. It is also unclear if obesity independently increases T2DM risk in this population. The aim of this study was to systematically review and synthesize the best available evidence regarding the association between PCOS and T2DM, stratified according to obesity status.

METHODS

A comprehensive search was conducted in PubMed, CENTRAL and Scopus databases up to October 31, 2020. Data are expressed as relative risk (RR) with 95% confidence interval (CI). The I² index was employed for heterogeneity.

RESULTS

The eligibility criteria were fulfilled by 23 studies (319,780 participants; 60,336 PCOS and 8847 type 2 diabetes cases). Women with PCOS demonstrated a higher risk of T2DM than those without PCOS (RR 3.45, 95% CI, 2.95-4.05, p < 0.001; I² 81.6%). This risk remained significant both in studies matched or unmatched for participants' age. With regard to body mass index (BMI), the RR for developing T2DM in obese and non-obese PCOS women compared with their non-PCOS counterparts was 3.24 (95% CI 2.25-4.65; p < 0.001; I² 30.9%) and 1.62 (95% CI 0.14-18.50; p = 0.70; I² 89.9%), respectively. The RR for developing T2DM was 3.85 (95% CI 1.99-7.43; p < 0.001; I² 46.2%) in obese compared with non-obese women with PCOS. This was also the case for overweight compared with lean women with PCOS.

CONCLUSIONS

Women with PCOS present an increased risk of T2DM compared with non-PCOS women only if they are obese/overweight.

The Major Impact of Obesity on the Development of Type 2 Diabetes (T2D) in Women With PCOS: A Systematic Review and Meta-Analysis of Observational Studies

Background/Aims: Polycystic ovary syndrome (PCOS) is associated with disordered carbohydrate metabolism and an increased risk for T2D. However, there are limited data on the magnitude of this risk. Furthermore, 50-80% of women with PCOS are obese and obesity is known to have a synergistic deleterious effect on glucose tolerance in affected women. We systematically reviewed the literature regarding the association between PCOS, obesity and T2D risk. Methods: A comprehensive search was conducted in PubMed, CENTRAL and Scopus databases. Data are expressed as relative risk (RR) with 95% confidence intervals (CI). The I2 index was employed for heterogeneity. The available data, did not allow us to analyze the impact of weight status as normal, overweight and obese and as a consequence the studied subjects were stratified as obese (BMI&gt;30 kg/m2) and non-obese (BMI&lt;30kg/m2). Results: Twelve studies fulfilled eligibility criteria, yielding a total of 224,284 participants (45,361 PCOS and 5,717 T2DM cases). Women with PCOS had a higher risk of T2D compared with to unaffected women (RR 3.13, 95% CI, 2.83-3.47, p&lt;0.001; I2 40.1%). When women with PCOS were stratified according to the presence or absence of obesity, the RR for developing T2D in obese compared with non-obese women with PCOS was 4.20 (95% CI 1.97-9.10; p&lt;0.001). Moreover, compared to control women, the RR for developing T2D was significantly increased only in obese PCOS, RR 4.06 (95% CI 2.75-5.98; p&lt;0.001). There was a trend toward significantly increased risk in non-obese PCOS women [RR 2.68 (95% CI 0.97-7.49; p=0.06). Conclusion: Women with PCOS have a &gt;3-fold increased risk of T2D compared to women without PCOS, but this risk is substantially increased by the presence of obesity. Accordingly, weight reduction should be pursued in these women. References: 1. Dunaif A, Segal KR, Futterweit W, Dobrjansky A. Profound peripheral insulin resistance, independent of obesity, in polycystic ovary syndrome. Diabetes. 1989;38(9):1165-1174.2. Legro RS, Kunselman AR, Dodson WC, Dunaif A. Prevalence and predictors of risk for type 2 diabetes mellitus and impaired glucose tolerance in polycystic ovary syndrome: a prospective, controlled study in 254 affected women. J Clin Endocrinol Metab. 1999;84(1):165-169.3. Ehrmann DA, Barnes RB, Rosenfield RL, Cavaghan MK, Imperial J. Prevalence of impaired glucose tolerance and diabetes in women with polycystic ovary syndrome. Diabetes Care. 1999;22(1):141-146.4. Rubin KH, Glintborg D, Nybo M, Abrahamsen B, Andersen M. Development and risk factors of type 2 diabetes in a nationwide population of women with polycystic ovary syndrome. J Clin Endocrinol Metab. 2017;102(10):3848-3857.

Insulin resistance, androgens, and lipids are gradually improved in an age-dependent manner in lean women with polycystic ovary syndrome: insights from a large Caucasian cohort

PURPOSE

Polycystic ovary syndrome (PCOS), considered a lifelong condition, manifests mainly as a cluster of hyperandrogenic symptoms during the early reproductive years, with the affected woman gradually developing an adverse cardiometabolic profile over the years. However, some data point to the possibility of differences in the evolution of PCOS according to a woman's weight. The aim of the present study was to evaluate the metabolic and hormonal profiles of women with PCOS over time.

METHODS

A total of 763 lean women with PCOS (BMI 20-25 kg/m²) and 376 controls were included. The study group was further divided into three age groups representing women post-adolescence, of reproductive age, and of late reproductive age. All subjects were assessed clinically, biochemically, and hormonally.

RESULTS

Waist circumference, lipids, androgens, and insulin resistance index (homeostasis model assessment of IR index (HOMA-IR)) were significantly higher in the PCOS group compared with controls. Age subgroup analysis showed a progressive decrease of HOMA-IR and waist circumference, and lipid levels were comparable between PCOS and controls in all age groups. Androgens remained significantly higher in PCOS, but they gradually decreased through time. A significant negative association of age with waist circumference, androgens, insulin, and HOMA-IR was revealed. Univariate and multivariate regression analysis disclosed a strong correlation of HOMA-IR with age (p = 0.014, β - 0.19, SE coefficient 0.008) as a single parameter or in combination with total cholesterol (TC) (p < 0.001, age: β - 0.023, SE 0.10; TC: β 0.084, SE 0.027).

CONCLUSION

Insulin resistance, androgens, and lipids are gradually improved in an age-dependent manner in lean PCOS women. We hypothesize that if these women do not gain weight with the passage of time, there is a high probability that their cardiometabolic risk will be attenuated.

Premature Adrenarche and its Association with Cardiovascular Risk in Females

Early activation of the adrenal zona reticularis, leading to adrenal androgen secretion, mainly dehydroepiandrosterone sulfate (DHEAS), is called premature adrenarche (PA). The fact that adrenal hyperandrogenism in females has been linked to a cluster of cardiovascular (CV) risk factors, even in prepubertal children, warrants investigation. Controversial results have been obtained in this field, probably due to genetic, constitutional, and environmental factors or differences in the characteristics of participants. In an attempt to understand, in depth, the impact of PA as a potential activator of CV risk, we critically present available data stratified according to pubertal status. It seems that prepubertally, CV risk is increased in these girls, but is somewhat attenuated during their second decade of life. Furthermore, different entities associated with PA, such as polycystic ovary syndrome, non-classical congenital adrenal hyperplasia, heterozygosity of CYP21A2 mutations, and the impact of DHEAS on CV risk, are reviewed. At present, firm and definitive conclusions cannot be drawn. However, it may be speculated that girls with a history of PA display a hyperandrogenic hormonal milieu that may lead to increased CV risk. Accordingly, appropriate long-term follow-up and early intervention employing a patient-oriented approach are recommended.

Current Management and Outcome of Pregnancies in Women With Adrenal Insufficiency: Experience from a Multicenter Survey

CONTEXT

Appropriate management of adrenal insufficiency (AI) in pregnancy can be challenging due to the rarity of the disease and lack of evidence-based recommendations to guide glucocorticoid and mineralocorticoid dosage adjustment.

OBJECTIVE

Multicenter survey on current clinical approaches in managing AI during pregnancy.

DESIGN

Retrospective anonymized data collection from 19 international centers from 2013 to 2019.

SETTING AND PATIENTS

128 pregnancies in 113 women with different causes of AI: Addison disease (44%), secondary AI (25%), congenital adrenal hyperplasia (25%), and acquired AI due to bilateral adrenalectomy (6%).

RESULTS

Hydrocortisone (HC) was the most commonly used glucocorticoid in 83% (97/117) of pregnancies. Glucocorticoid dosage was increased at any time during pregnancy in 73/128 (57%) of cases. In these cases, the difference in the daily dose of HC equivalent between baseline and the third trimester was 8.6 ± 5.4 (range 1-30) mg. Fludrocortisone dosage was increased in fewer cases (7/54 during the first trimester, 9/64 during the second trimester, and 9/62 cases during the third trimester). Overall, an adrenal crisis was reported in 9/128 (7%) pregnancies. Cesarean section was the most frequent mode of delivery at 58% (69/118). Fetal complications were reported in 3/120 (3%) and minor maternal complications in 15/120 (13%) pregnancies without fatal outcomes.

CONCLUSIONS

This survey confirms good maternal and fetal outcome in women with AI managed in specialized endocrine centers. An emphasis on careful endocrine follow-up and repeated patient education is likely to have reduced the risk of adrenal crisis and resulted in positive outcomes.

MON-030 Intermediate Hyperglycemia and Type 2 Diabetes in Women with Polycystic Ovary Syndrome: Findings from Large Caucasian Cohort

Background: Insulin secretory defects and insulin resistance exists in women with polycystic ovary syndrome (PCOS) and are prerequisites for the development of type 2 diabetes (T2D). Objective: To determine the prevalence of T2D, impaired glucose tolerance (IGT) and impaired fasting glucose (IFG), as well as the factors associated with these dysglycemic conditions. Participants: 1614 women with PCOS of Caucasian origin (Rotterdam criteria) with a mean age 25.14±5.56 years and BMI 27.34±7.09 kg/m² comprised the study group, whereas 359 normally ovulating, not hyperandrogenic women of comparable age and BMI, served as controls. Design: Observational study. Setting: Outpatient clinics of tertiary hospitals. Main Outcome and Measures: Clinical, biochemical, hormonal and ovarian ultrasound as well oral glucose tolerance test were performed in all subjects participating in the study. Diabetes and intermediate hypeglycemia was categorised according to WHO criteria and PCOS subgroups was based on the Rotterdam criteria. Results: In the PCOS group 2.2%, 9.5% and 12,4% of subjects had T2D, IGT and IFG, respectively. In control group 1,11%, 7.5% and 8.9% had T2D, IGT and IFG, respectively. When the existence of T2D was stratified according to age and BMI, no difference was found among age and BMI subgroups or PCOS subgroups. Namely in patients aged 17-22 years, T2D was detected in 3 lean and 2 obese subjects. The corresponding distribution for patients aged 22-30 years was 4 lean, one overweight and 2 obese, whereas in those older than 31 years, 2 overweight and 5 obese suffered from T2D. Free Androgen Index (FAI), waist to hip ratio (WHR) and LDL levels were significantly higher in T2D subjects in comparison to PCOS women with normal glucose metabolism. Diagnosis of T2D was significantly associated with Free Androgen Index (r: 0.469, p<0.05), while subjects with either IFG and IGT had positive association with BMI, WHR, FAI and HOMA-IR. In controls, T2D, IGT and IFG were positively associated with BMI and androgen concentrations. Conclusions: The prevalence of T2D and IGT is significantly higher in our large cohort of PCOS women in comparison to controls. The existence of T2D is irrespective of age and BMI, and seems to be inherent for PCOS women. Hence, the evaluation of glycemic status in women with PCOS using OGTT is supported.

Unfavorable Hormonal and Psychologic Profile in Adult Women with a History of Premature Adrenarche and Pubarche, Compared to Women with Polycystic Ovary Syndrome

If circulating adrenal androgens levels rise before the age of 8 years in girls, this phenomenon is termed premature adrenarche (PA), while the concomitant appearance of pubic hair is called premature pubarche (PP). Girls with PA-PP display an unfavorable hormonal profile compared to their normal peers and have an increased risk of developing polycystic ovary syndrome (PCOS) features peripubertally. However, the sequelae of premature adrenarche remains unclear. We assessed metabolic, hormonal, psychologic profiles, and ovarian morphology in 21 women of mean age (±SD) 21.3±3.3 years, BMI: 23.6±4.4 kg/m² with PA-PP, 45 women with PCOS and 26 controls, matched for age and BMI. PA-PP women displayed a favorable lipid profile compared to PCOS and controls. Insulin resistance index (HOMA-IR), however, were similar in PA-PP and PCOS women (2.09±1.42, 2.08±0.83) and higher than controls (1.13±0.49, p <0.05). Circulating androstenedione levels did not differ between PA-PP and PCOS women (0.11±0.05 vs. 0.12±0.03), but was higher than that of controls (0.02±0.0 nmol/l, p <0,05). Ovarian volume was increased in PA-PP and PCOS (11.14±3.3 vs. 10.99±4.61) compared to controls (6.74±1.83 cm³). PA-PP women had a higher score of state/trait anxiety and depressive and eating disorder symptoms than controls, with a pattern that matched that of PCOS women. Only 14% of the PA-PP group fulfilled the Rotterdam PCOS criteria. Some women with a history of PA-PP displayed hormonal and psychologic profile similar to PCOS, and accordingly a regular monitoring of these girls during adulthood is advised.

MON-214 The Natural Course of Normal Weight Women with Polycystic Ovary Syndrome: An Insight into Metabolic Changes of Large Caucasian Cohort

Background: Polycystic ovary syndrome (PCOS) constitutes one of the most common endocrine diseases that should be considered as a continuum. This life span disease is originating in foetal life and through long reproductive period falling into long-term consequences extending beyond menopause. Hence, it is considered to increase diabetes risk as well cardiovascular risk and outcomes. However, the natural course of the disorder is not completely understood, and recent data suggest differences in the evolution of the disease between normal-weight and obese patients, indicating that the cardiometabolic effects may be an epiphenomenon of the obesity and not of PCOS per se. We aimed to define the evolution of normal-weight Caucasian women with PCOS through the years. Materials and Methods: In this multicenter cross-sectional case control study 763 normal-weight women with PCOS according to Rotterdam criteria and 376 age and BMI-matched controls were included. The study group was further divided into three age groups, representing women post-adolescence, of reproductive age, and of late reproductive age to menopause. All the subjects were assessed clinically, biochemically, hormonally, and with the means of pelvic ultrasound. Results: Waist circumference, WHR, FG score, glucose, lipids, gonadotropin, androgen levels as well as HOMA-IR and ovarian volume were significantly higher in the PCOS group in comparison to controls. No statistical difference was noted among PCOS women diagnosed with the Rotterdam criteria vs. those who met the NIH criteria. Age subgroup analysis showed that androgens remained significantly higher among PCOS and controls, whereas insulin and lipid levels, as well as HOMA-IR, were comparable between PCOS and controls in all age groups. Pearson correlations of studied parameters with age revealed a significant negative association of age with waist circumference, FG score, androgens (testosterone, FAI, DHEAS, D4), insulin, FSH, and HOMA-IR. Finally, multiple regression analysis of factors affecting HOMA-IR disclosed a negative association with age (r:-0.123, p: 0.001) and a positive association with BMI (r: 0.105, p: 0.004) and DHEAS (r: 0.175, p: 0.001). Conclusions: Lipids, androgens, insulin resistance, and menstrual cyclicity are gradually improved in an age-dependent manner in PCOS lean patients and age and BMI matched controls. Normal-weight PCOS women exhibit a higher degree of IR and dyslipidaemia compared to their healthy peers, but these aberrations improve gradually. If PCOS women retain their normal weight over the years, they may develop a metabolic and hormonal profile comparable to that of their peers without PCOS later in life.

Links between aldosterone excess and metabolic complications: A comprehensive review

Shortly after the first description of primary aldosteronism (PA) appeared in the 1950s by Jerome Conn, an association of the condition with diabetes mellitus was documented. However, a clear pathophysiological interrelationship linking the two entities has yet to be established. Nevertheless, so far, many mechanisms contributing to insulin resistance and dysregulation of glucose uptake have been described. At the same time, many observational studies have reported an increased prevalence of the metabolic syndrome (MetS) among patients with PA. Regarding the relationship between aldosterone levels and obesity, a vicious cycle of adipokine-induced aldosterone production and aldosterone adipogenic action may be further contributing to MetS manifestations in PA patients. However, whether aldosterone excess affects lipid metabolism is still under investigation. Also, recent findings of the coexistence of glucocorticoid excess in many cases of PA highlight the need for further studies to examine the presumed link between high aldosterone levels and various metabolic parameters. In the present review, our focus is to comprehensively present the spectrum of available research findings concerning the possible associations between aldosterone excess and metabolic alterations, including impaired glucose metabolism, insulin resistance and, consequently, diabetes, altered lipid metabolism and the development of fatty liver. In addition, the complex relationship between obesity and aldosterone is discussed in detail.

Management of the Female With Non-classical Congenital Adrenal Hyperplasia (NCCAH): A Patient-Oriented Approach

Non-classical congenital adrenal hyperplasia (NCCAH) is considered to be a common monogenic inherited disease, with an incidence range from 1:500 to 1:100 births worldwide. However, despite the high incidence, there is a low genotype-phenotype correlation, which explains why NCCAH diagnosis is usually delayed or even never carried out, since many patients remain asymptomatic or are misdiagnosed as suffering from other hyperandrogenic disorders. For affected adolescent and adult women, it is crucial to investigate any suspicion of NCCAH and determine a firm and accurate diagnosis. The Synacthen test is a prerequisite in the event of clinical suspicion, and molecular testing will establish the diagnosis. In most cases occurring under 8 years of age, the first symptom is premature pubarche. In some cases, due to advanced bone age and/or severe signs of hyperandrogenism, initiation of hydrocortisone treatment prepubertally may be considered. Our unifying theory of the hyperandrogenic signs system and its regulation by internal (hormones, enzymes, tissue sensitivity) and external (stress, insulin resistance, epigenetic, endocrine disruptors) factors is presented in an attempt to elucidate both the prominent genotype-phenotype heterogeneity of this disease and the resultant wide variation of clinical findings. Treatment should be initiated not only to address the main cause of the patient's visit but additionally to decrease abnormally elevated hormone concentrations. Goals of treatment include restoration of regular menstrual cyclicity, slowing the progression of hirsutism and acne, and improvement of fertility. Hydrocortisone supplementation, though not dexamethasone administration, could, as a general rule, be helpful, however, at minimum doses, and also for a short period of time and, most likely, not lifelong. On the other hand, in cases where severe hirsutism and/or acne are present, prescription of oral contraceptives and/or antiandrogens may be advisable. Furthermore, women with NCCAH commonly experience subfertility, therefore, there will be analysis of the appropriate approach for these patients, including during pregnancy, based mainly on genotype. Besides, we should keep in mind that since the same patient will have changing requirements through the years, the attending physician should undertake a tailor-made approach in order to cover her specific needs at different stages of life.

Levothyroxine Replacement Therapy and Overuse: A Timely Diagnostic Approach

BACKGROUND

Levothyroxine (LT4) is one of the most prescribed drugs worldwide. Once started, approximately 90% of patients continue treatment long term. However, accumulating evidence suggests that many patients, for whom the indication for its administration is not adequately established and the diagnosis is not well documented, are overusing it. This study aimed to evaluate the necessity for and determine potential prognostic factors of long-term LT4 supplementation.

METHODS

A prospective clinical cohort follow-up study was carried out. In 291 subjects (84% females) aged 48 ± 16 years on LT4 replacement therapy without a solid diagnosis of hypothyroidism being provided, the treatment was paused. At the beginning and after six to eight weeks of treatment discontinuation, thyrotropin (TSH) and free thyroxine levels were assessed, and thyroid ultrasound was performed. A TSH value of ≥4.5 IU/mL was considered as underlying hypothyroidism.

RESULTS

Among the 291 individuals, 114 became hypothyroid (group A), while 177 subjects remained euthyroid off LT4 (group B; 39.2% vs. 60.8%, p < 0.001). The groups were comparable regarding sex, family history, age, body mass index, duration of treatment, basal TSH and free thyroxine values, thyroid volume, and presence of thyroid autoantibodies. However, diffuse inhomogeneous echogenicity on ultrasound examination was significantly higher (p < 0.001) in group A.

CONCLUSIONS

These findings suggest considerable overuse of thyroxine therapy. The results underline the initial need to establish the diagnosis firmly before treatment initiation and to undertake periodic evaluation of all patients on chronic LT4 treatment as to the necessity for treatment continuation. In all patients on long-term LT4 therapy in whom the diagnosis has not been definitively established, it appears rational to introduce a six- to eight-week period of LT4 replacement therapy discontinuation, preceded and followed by TSH tests, as the first-line approach-a procedure that could be implemented as part of a common strategy among the scientific community to decrease current LT4 overuse.

Heterozygous mutations in the cholesterol side-chain cleavage enzyme gene (CYP11A1) can cause transient adrenal insufficiency and life-threatening failure to thrive

The first and rate-limited step of steroidogenesis in all steroidogenic tissues is the conversion of cholesterol to pregnenolone, catalysed by P450scc side-chain cleavage enzyme (CYP11A1 gene-SCC). SCC deficiency has been characterised as an autosomal recessive disorder, although it may also be inherited as an autosomal dominant trait in humans. Here, we describe a family of three members carrying the same novel heterozygous CYP11A1 mutation, a c.235G > A missense variant in exon 1: pVal79Ile. A 46 XY boy (P1) was presented at the age of 3 months with early onset adrenal insufficiency and life-threatening failure to thrive, with low adrenal androgens but normal external genitalia. Five years later, the parents had twin girls, one of whom (P2) presented acute adrenal crisis a few hours after birth. The father (P3), born at term, was reported as having suffered from failure to thrive during the neonatal period, though not his only male sibling. This report of severe early adrenal insufficiency caused by a heterozygous mutation of the CYP11A1 gene clearly demonstrates that SCC deficiency may be inherited as an autosomal dominant trait in humans.

Acute Bilateral Cataract in Type 1 Diabetes Mellitus

We report a case of a 17-year old boy, who presented acute bilateral cataract and complete vision loss within six days, three months after the diagnosis of Type 1 Diabetes Mellitus (T1DM) under optimal metabolic control (HbA1c 6%). At presentation (HbA1c 10.4%) and after correction of diabetic ketoacidosis (pH 6.917) and the beginning of intensified insulin treatment with insulin glargine once daily and insulin aspart before meals,the patient underwent full ophthalmologic examination,which was completely normal. Only few cases with acute bilateral cataract - all relatively shortly after the diagnosis of T1DM - have been reported. Several hypotheses have been drawn but the exact mechanism of this phenomenon remains unclear. The interesting finding in our case was the clearly elevated insulin autoantibodies (IAA) at the time of cataract formation, negative however at presentation. The relation between the elevation of IAA and cataract formation should be further investigated in diabetic patients.