Costanza Chiapponi, Michael Faust, Matthias Schmidt, Michael Thomas, Anne Maria Schultheis, Baki Akgul, Hakan Alakus
{"title":"Subacute thyroiditis after SARS-Cov2 vaccination: A review of the cases being described and personal experience.","authors":"Costanza Chiapponi, Michael Faust, Matthias Schmidt, Michael Thomas, Anne Maria Schultheis, Baki Akgul, Hakan Alakus","doi":"10.2478/enr-2022-0024","DOIUrl":"https://doi.org/10.2478/enr-2022-0024","url":null,"abstract":"<p><p><b>Objective.</b> The present study evaluates the occurrence of subacute thyroiditis in temporal connection with SARS-Cov2 vaccinations described in the literature last year and confirmed by our clinical routine. <b>Methods.</b> Systematic literature search in Medline for studies reporting diagnosis of subacute thyroiditis in temporal connection with vaccinations against Covid 19. <b>Results.</b> The literature search yielded 24 relevant references out of which 22 were \"case reports\" and two \"Letters to the Editor\" and encompassed 37 patient cases, in total. They had received a SARS-Cov2 vaccination shortly before the diagnosis (median interval to vaccination six days). In none of these cases, infection of the upper respiratory tract had previously been identified as a classic trigger of the disease. Newly occurring hyperthyroidism and increased laboratory signs of inflammation were described in 78% and 74% of cases, respectively. Atypical clinical pictures (asymptomatic, euthyroid, no inflammation marks) have been observed in both the literature and our patients suspected of thyroid cancer referred to surgery. <b>Conclusions.</b> In times of pandemics and the resulting vaccination, new rapidly occurring sonographic changes in the thyroid gland should be revaluated after 2-3 weeks, or recommended to undergo a fine-needle biopsy, in order to avoid unnecessary surgical interventions.</p>","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 3","pages":"227-231"},"PeriodicalIF":0.0,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40597389","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 relationship between body mass index, blood pressure, and atherosclerosis risk factors in type 1 and 2 diabetic patients from northwestern Algeria.","authors":"Mustapha Diaf, Halima Benchikh, Ikram Bennour, Oumnia Wafaa Benzerbedj, Boumediene Meghit Khaled","doi":"10.2478/enr-2022-0020","DOIUrl":"https://doi.org/10.2478/enr-2022-0020","url":null,"abstract":"<p><p><b>Objective.</b> The present work was framed to study the relationship between body mass index (BMI), blood pressure, and atherosclerosis risk factors on the basis of three lipid ratios in type 1 (T1D) and type 2 diabetic (T2D) patients. <b>Methods.</b> A prospective, comparative, and cross-sectional study was performed at the level of three health facilities in Sidi-Bel-Abbes city (north-western Algeria). Anthropometric parameters, systolic and diastolic blood pressures, and lipid profiles were assessed in adults T1D and T2D patients over a period of eleven months. Individual atherogenic risk factors were estimated based on lipid ratios in relation to corpulence and hypertension. <b>Results.</b> From the total 237 adult diabetic patients, 90 T1D and 147 T2D ones were involved in the study. Total cholesterol (TC)/high-density lipoprotein (HDL) and triglycerides (TG)/HDL ratios were significantly higher in normal weight T2D comparing to T1D. The TC/HDL ratio was significantly higher (p=0.046) in obese men. Nevertheless, no significant differences were revealed in low-density lipoprotein (LDL)/HDL ratio between T1D and T2D patients. Higher TC/HDL ratios were observed in T2D patients (males and females) with normal blood pressure (systolic blood pressure, SBP ≤13.5 mmHg and diastolic blood pressure, DBP ≤8 mmHg) comparing to T1D patients. Likewise, the LDL/HDL ratio was significantly higher in T2D men with normal DBP (p=0.044). <b>Conclusion.</b> The lipid ratios constitute good indices while managing diabetes. It is also recommended to screen T1D and T2D patients for hypertension, dyslipidemia, and obesity and initiate the management at early stages to prevent the related complications, such as atherosclerosis, as a priority.</p>","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 3","pages":"190-200"},"PeriodicalIF":0.0,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40609574","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}
Sony Wibisono Mudjanarko, Anugrahini Irawati, Damayanti Tinduh
{"title":"Effects of aerobic exercise on adiponectin levels potentially mediated by vitamin D in type 2 diabetic patients.","authors":"Sony Wibisono Mudjanarko, Anugrahini Irawati, Damayanti Tinduh","doi":"10.2478/enr-2022-0021","DOIUrl":"https://doi.org/10.2478/enr-2022-0021","url":null,"abstract":"<p><p><b>Objective.</b> The positive effects of exercise on adiponectin and vitamin D have independently been reported. Recent studies have suggested that vitamin D increases adiponectin synthesis through inhibition of the rennin-angiotensin system in adipose tissue. However, studies evaluating the effects of an aerobic exercise on adiponectin and vitamin D simultaneously investigating the potential mechanism of vitamin D-dependent adiponectin pathways in patients with type 2 diabetes mellitus (T2DM) are still limited. This study was undertaken to examine the effects of aerobic exercise on adiponectin and its association with vitamin D in patients with T2DM. <b>Methods.</b> Total twenty-two patients with T2DM were randomly divided into intervention and control group. The intervention group underwent a moderate intensity of a walking mode treadmill aerobic exercise for four weeks. The exercise protocol was adapted from modified Bruce test with a periodic speed and inclination increase. In both groups, body mass index (BMI), vitamin D, and adiponectin levels, were measured before and after four weeks of the lasting program. <b>Results.</b> The mean of the increased adiponectin and vitamin D levels after exercise was significantly higher in the intervened than the control group, but statistically significant difference was only found in the adiponectin effect (p=0.017). There was a significant association found between vitamin D and adiponectin in the intervention group after data adjustments to age and BMI (p=0.005). <b>Conclusion.</b> Moderate intensity of treadmill exercise with increased speed and inclination periodically increased adiponectin level in patients with T2DM. The increased adiponectin might potentially be mediated by increased vitamin D, but the level of their association impact was dependent on the age and BMI.</p>","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 3","pages":"201-208"},"PeriodicalIF":0.0,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40609578","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":"Impact of hydrocortisone replacement on bone mineral density and bone turnover markers in patients with primary adrenal insufficiency.","authors":"Meriem Yazidi, Cyrine Danguir, Dhouha Maamer, Ibtissem Oueslati, Karima Khiari, Mohamed Elleuch, Moncef Feki, Melika Chihaoui","doi":"10.2478/enr-2022-0022","DOIUrl":"https://doi.org/10.2478/enr-2022-0022","url":null,"abstract":"<p><p><b>Objective.</b> The study was aimed to assess the effect of hydrocortisone (HC) replacement therapy on bone mineral density (BMD) and bone turnover markers in patients with primary adrenal insufficiency (PAI).</p><p><strong>Methods: </strong>A cross-sectional study was conducted in 37 PAI patients treated with HC. BMD and selected bone turnover markers (β-crosslaps and osteocalcin) were measured. A stepwise binary logistic regression model was applied to determine the independent variables associated with low BMD.</p><p><strong>Results: </strong>Osteoporosis was noted in 14.3% and osteopenia in 34.3% of cases. These patients were older (p=0.01) and received higher daily HC dose compared to patients with normal BMD (p=0.01). BMD values in the lumbar spine and the femoral neck were negatively correlated with daily HC dose (r=-0.36, p=0.03 and r=-0.34, p=0.05, respectively). Plasma osteocalcin was negatively correlated with disease duration (r=-0.38, p=0.02) and cumulative HC dose (r=-0.43, p<0.01). In multivariate analysis, a daily HC dose ≥12 mg/m2/day was independently associated with a higher risk of osteopenia/osteoporosis [OR (95% CI), 9.0 (1.1-74.6); p=0.04].</p><p><strong>Conclusions: </strong>Impaired bone mineralization in patients with PAI is correlated with HC dose. A daily HC dose ≥12 mg/m<sup>2</sup>/day was associated with an increased risk of osteopenia and osteoporosis in these patients.</p>","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 3","pages":"209-215"},"PeriodicalIF":0.0,"publicationDate":"2022-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40609579","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}
A. Sydorchuk, L. Sydorchuk, A.F. Gutnitska, V. Dzhuryak, I. I. Kryvetska, R. Sydorchuk, Y. Ursuliak, O. Iftoda
{"title":"Endothelium function biomarkers and carotid intima-media thickness changes in relation to NOS3 (rs2070744) and GNB3 (rs5443) genes polymorphism in the essential arterial hypertension","authors":"A. Sydorchuk, L. Sydorchuk, A.F. Gutnitska, V. Dzhuryak, I. I. Kryvetska, R. Sydorchuk, Y. Ursuliak, O. Iftoda","doi":"10.2478/enr-2022-0012","DOIUrl":"https://doi.org/10.2478/enr-2022-0012","url":null,"abstract":"Abstract Objective. The aim of the present study was to clarify the endothelial function biomarkers and carotid “intima media” thickness (IMT) changes in relation to GNB3 (rs5443) and NOS3 (rs2070744) genes polymorphism in the essential arterial hypertension (EAH). Methods. One-hundred EAH patients (48 – control) participated in the case-control study. Soluble vascular cell adhesion molecule (sVCAM-1), total NO metabolites (NO2–+NO3–), transcriptional activity of NOS3 gene, endothelium-dependent flow-mediated dilation of the brachial artery (FMD BA), and carotid IMT were studied. GNB3 (rs5443) and NOS3 (rs2070744) genotyping was performed by TaqMan probes (CFX96™Real-Time PCR). Results. The connection of NOS3 (rs2070744) with decreased total NO metabolites (F=71.11; p<0.001), reduced NOS3 genes transcription activity (F=8.71; p<0.001) and increased sVCAM-1 (F=6.96; p=0.002), especially in the C-allele carriers (particularly in CC-genotype patients with lower NO – 16.46% and 40.88%; p<0.001), lowered the transcription activity of NOS3 gene – 46.03% 7 times (p<0.001), and become higher sVCAM-1 – 35.48% and 89.48% (p<0.001), respectively. ANOVA did not confirm the association of GNB3 (rs5443) gene with endothelial function and carotid IMT. Severe EAH was associated with increased carotid IMT – 50.0% (p<0.001) and 57.14% (p=0.007), wider carotid arteries – 17.36% (p=0.012) and 21.79% (p=0.004), and decreased NOS3 genes transcription activity – 34.54% (p=0.003). Atherosclerotic plaques were unilateral – 24.77% (χ2=5.35; p=0.021) or bilateral – 27.62% (χ2=5.79; p=0.016). IMT---gt---0.9 mm was followed by a higher BP (p<0.001), FMD BA 11.80% decrease with compensatory increase in carotid arteries diameters – 17.38% and 21.99% (p<0.001) and sVCAM-1 by 20.49% (p=0.005). Conclusion. NOS3 (rs2070744), but not GNB3 (rs5443), gene associated with the essential arterial hypertension severity relying upon the endothelial function impairment and NOS3 genes reduced transcription activity.","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"5 1","pages":"104 - 114"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41300554","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}
Karabo R Matee, A. Akinnuga, Angezwa Siboto, P. Ngubane, A. Khathi
{"title":"Bredemolic acid restores glucose utilization and attenuates oxidative stress in palmitic acid-induced insulin-resistant C2C12 cells","authors":"Karabo R Matee, A. Akinnuga, Angezwa Siboto, P. Ngubane, A. Khathi","doi":"10.2478/enr-2022-0014","DOIUrl":"https://doi.org/10.2478/enr-2022-0014","url":null,"abstract":"Abstract Objective. Due to insulin resistance and oxidative stress that are associated with type 2 diabetes mellitus (T2DM), T2DM has become a prevalent metabolic disorder that presents various side effects. However, alternative antidiabetic treatment has commonly been used in treating diabetes mellitus in diabetic patients. In our previous studies, bredemolic acid has been reported as an antidiabetic agent that improves glucose uptake, ameliorates insulin resistance, and oxidative stress in the liver, heart, kidney, and skeletal muscle of prediabetic rats. However, these effects have not been validated in vitro. Therefore, this study was aimed to investigate the effects of bredemolic acid on insulin-mediated glucose utilization, lipid peroxidation, and the total antioxidant capacity (TOAC) in palmitic acid-induced insulin-resistant C2C12 skeletal muscle cells in vitro. Methods. Insulin resistance was induced in the skeletal muscle cells after 4 h of exposure to palmitic acid (0.5 mmol/l). Different cell groups were incubated in culture media DMEM supplemented with fetal calf serum (10%), penicillin/streptomycin (1%), and L-glutamine (1%) and then treated with either insulin (4 µg/ml) or bredemolic acid (12.5 mmol/l) or with both. Thereafter, the cells were seeded in 24- or 96-well plates for determination of the cell viability, glucose utilization, glycogen formation, and antioxidant capacity. Results. The results showed that bredemolic acid significantly improved TOAC and promoted glucose utilization via attenuation of lipid peroxidation and increased glycogen formation in the insulin-resistant cells, respectively. Conclusion. This study showed that bredemolic acid restored the insulin resistance through improved glucose utilization, glycogen formation, and TOAC in the skeletal muscle cells.","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 1","pages":"126 - 133"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46602946","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":"Proton pump inhibitors therapy and risk of hyperprolactinemia with associated sexual disorders","authors":"M. Ashfaq, M. Haroon, Yasser Msa Alkahraman","doi":"10.2478/enr-2022-0015","DOIUrl":"https://doi.org/10.2478/enr-2022-0015","url":null,"abstract":"Abstract Proton pump inhibitors (PPIs) are the most widely prescribed medications in the world. According to numerous studies, PPIs have been linked to hyperprolactinemia, which can lead to a variety of sexual and reproductive issues. This review summarizes the effects of numerous PPIs on the blood prolactin levels and associated sexual dysfunctions, which have an effect on the patient’s life quality and fertility. The study is taken into account all the available resources till January 31, 2021. Out of total 364, only 27 relevant resources were involved in this review. In certain studies, short-term PPIs use has been shown to have little or no effect on the blood prolactin and other reproductive hormones levels. PPIs have been linked to the development of hyperprolactinemia in several case studies with varying degrees of the blood prolactin levels increase seen in individuals taking PPI alone or in combination with medications, like prokinetics. The relative risk of the sexual consequences development, such as gynecomastia, has been documented using lansoprazole and omeprazole in various cohort studies. On the other hand, other bits of data are insufficient to establish a definite relationship that can turn a possibility into certainty. The majority of the literature data is comprising of double-blind, randomized, crossover studies, case reports, and adverse drug reaction incidents reported to various pharmacovigilance centers. To investigate this link, high-quality studies in patients taking PPIs for a longer time period are needed. We conclude this article with a comprehensive discussion of the hyperprolactinemia clinical implications and the PPIs’ function.","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 1","pages":"134 - 147"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43449994","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}
H. Kassab, Marwa Tarek Ismaeal, T. A. Elfattah, Abd Elaaty
{"title":"Diabetic foot care knowledge and practice in type 2 diabetes and relation to microvascular complications in Alexandria (Egypt)","authors":"H. Kassab, Marwa Tarek Ismaeal, T. A. Elfattah, Abd Elaaty","doi":"10.2478/enr-2022-0011","DOIUrl":"https://doi.org/10.2478/enr-2022-0011","url":null,"abstract":"Abstract Objectives. Egypt occupies the 8th rank in the prevalence of diabetes mellitus worldwide. The social and financial burden of diabetes and its complications represents a major health problem in Egypt. Diabetic foot and its consequences (ulcers and amputation) are preventable through good education for both physicians and patients. Methods. This cross-sectional study was conducted on 100 patients with type 2 diabetes attending diabetes outpatient clinic in Alexandria main university hospital (AMUH). Patients were subjected to history taking, physical examination, and laboratory investigations. Screening for peripheral neuropathy was done using Michigan Neuropathy Screening Instrument (MNSI). A pre-tested questionnaire was used to assess the diabetic foot care knowledge and practice in participants. Results. Only 25% and 24% of participants had good diabetic foot care knowledge and practice, respectively. There was a highly significant positive correlation between knowledge and practice in studied group (p<0.001). The presence of microvascular complications leads to a significantly higher knowledge, but not practice. Conclusions. Diabetic foot care knowledge and practice are poor in our community. Foot care knowledge, unlike practice, is increased with the presence of microvascular complications. We should develop effective educational programs for patients and physicians to increase knowledge and practice before the development of complications.","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 1","pages":"95 - 103"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47580100","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}
O. Minchenko, Olena O. Khita, O. Rudnytska, Y. V. Yefimova, D. O. Tsymbal, D. Minchenko, M. Sliusar, Qiuxia He, Kechun Liu
{"title":"The impact of single walled carbon nanotubes on the expression of microRNA in zebrafish (Danio rerio) embryos","authors":"O. Minchenko, Olena O. Khita, O. Rudnytska, Y. V. Yefimova, D. O. Tsymbal, D. Minchenko, M. Sliusar, Qiuxia He, Kechun Liu","doi":"10.2478/enr-2022-0013","DOIUrl":"https://doi.org/10.2478/enr-2022-0013","url":null,"abstract":"Abstract Objective. Single-walled carbon nanotubes (SWCNTs) are able to cross the blood-brain barrier, penetrate through the cell membrane, and accumulate in the cell nucleus, which purposefully allows their use in the health sciences as imaging probes and drug carriers in the cancer therapy. The aim of this study was to investigate the effect of low doses of SWCNTs on the expression of microRNAs associated with the cell proliferation and the brain development in zebrafish (Danio rerio) embryos. Methods. The zebrafish embryos (72 h post fertilization) were exposed to low doses of SWCNTs (2 and 8 ng/ml of medium) for 24 or 72 h. The microRNAs (miR-19, miR-21, miR-96, miR-143, miR-145, miR-182, and miR-206) expression levels were measured by quantitative polymerase chain reaction analysis. Results. It was found that low doses of SWCNTs elicited dysregulation in the expression of numerous cell proliferation and brain development-related microRNAs (miR-19, miR-21, miR-96, miR-143, miR-145, miR-182, and miR-206) in dose- (2 and 8 ng/ml of medium) as well as malformations in the zebrafish embryos brain development in a time-dependent (24 and 72 h) manner. Conclusion. Taken together, the present data indicate that the low doses of SWCNTs disturbed the genome functions and reduced the miR-19, miR-21, miR-96, miR-143, miR-145, miR-182, and miR-206 expression levels in dose- and time-dependent manners and interrupted the brain development in the zebrafish embryos indicating for both the genotoxic and the neurotoxic interventions.","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 1","pages":"115 - 125"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46847857","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}
I. Inácio, L. Fonseca, A. Amado, V. Benido, I. Ribeiro, J. Dores, C. Amaral, M. H. Cardoso
{"title":"Characteristics and treatment outcomes of micromegaly – acromegaly with apparently normal basal GH: A retrospective study and literature review","authors":"I. Inácio, L. Fonseca, A. Amado, V. Benido, I. Ribeiro, J. Dores, C. Amaral, M. H. Cardoso","doi":"10.2478/enr-2022-0010","DOIUrl":"https://doi.org/10.2478/enr-2022-0010","url":null,"abstract":"Abstract Objective. Micromegaly describes a subgroup of patients with clinically evident acromegaly and elevated insulin-like growth factor I (IGF-I) with apparently normal basal growth hormone (bGH) and often a glucose-suppressed growth hormone (GH) of <1 ng/mL at diagnosis. It is controversial whether this condition is a distinct clinical entity or a classic acromegaly in early stages. The aim of the present article was to characterize the prevalence, clinical and biochemical characteristics, and therapeutic outcomes of micromegaly. Methods. A retrospective study of patients with an acromegaly followed ≥1 year at a tertiary center from 1995 to 2019. Patients without IGF-I or GH measurements at diagnosis were excluded. At diagnosis, bGH was considered normal if <2 ng/mL. Results. From 74 patients with acromegaly, 6 (8.1%) had normal bGH levels. There was no difference in the gender distribution, median diagnostic delay, and follow-up time between patients with normal bGH and elevated bGH. Patients with normal bGH were significantly older at time of the first acromegalic manifestation and diagnosis they had significantly lower nadir post-glucose GH and IGF-I levels, and tended to have a higher prevalence of obesity than patients with the elevated bGH. The frequency of acromegalic symptoms, signs, and other comorbidities than obesity was similar between groups. Five patients (83.3%) with normal bGH presented microadenomas. Post-operative remission and outcomes at last visit were comparable between patients with or without normal bGH. Conclusions. Normal bGH acromegaly is relatively uncommon in our patients. These patients showed differentiating characteristics from the classical acromegaly with elevated bGH. Further studies are needed to extend the knowledge about its clinical behavior, therapeutic outcomes, morbidity, and mortality.","PeriodicalId":11650,"journal":{"name":"Endocrine regulations","volume":"56 1","pages":"87 - 94"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47730951","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}