Hormone Test Results Research Articles

Investigating the relationship between spermogram parameters and sexual desire in infertile men: a cross-sectional study from a tertiary centre in Iran

BackgroundMale factor infertility can affect spermatogenesis, sexual desire, and thus the quality of life of couples. The present study was conducted to investigate the relationship between spermogram parameters, and the...

Long-term cytokine profile in multisystem inflammatory disease among children

BackgroundMultisystem inflammatory disease in children (MIS-C) is a post-infectious condition following coronavirus disease-19 infection. Long-term follow-up data suggests that initial clinical severity does not necessarily correlate with long-term outcomes. The long-term immunological response in children with MIS-C remains poorly understood. We analyzed cytokine profiles at diagnosis and during follow-up, in pediatric patients with MIS-C, exploring correlations among cytokine expressions and standard biochemical and hormonal test results. MethodsTwenty-five MIS-C patients (mean 9.4 ± 3.9) with complete test results at diagnosis and at 6- and 12-months follow-up were included in the study. Selected cytokines, such as IL-9, eotaxin, IP-10, MIP-1β, RANTES, MCP-1(MCAF), TNF-α, PDGF-B, IL-4, and MIP-1α, were included in the analysis. ResultsIP-10, MCP-1 (MCAF), and MIP-1α levels normalized or nearly normalized at 6–12 months, the remaining cytokines, including IL-9, eotaxin, MIP-1β, RANTES, TNF-α, PDGF-B, IL-4, remained higher in MIS-C than in controls at our last follow-up time. At 6 months post-diagnosis, a mild negative correlation between triglycerides and HOMA-IR with MCP-1 (MCAF), IL-4, and Eotaxin was noted. At the 12-month follow-up we found a mild positive correlation of cortisol and ACTH levels with PDGF-B, MIP-1α, and TNF-α. Conversely, a negative correlation between these cytokines with fasting glucose and HOMA-IR was observed. ConclusionsOur study findings highlight a notable cytokine-mediated inflammatory response in pediatric patients with MIS-C, characterized by sustained elevated levels over a 12-month monitoring period compared to the control group. We have identified various interrelationships among different cytokines, as well as correlations between heightened cytokine levels and metabolic and hormonal patterns. The pronounced inflammatory response underscores its involvement in acute organ damage, while its persistence suggests potential implications for long-term metabolic disorders.

Principles and features of ultrasound hypoechogenicity in diffuse thyroid pathology.

For different thyroid diseases and hormonal metabolism, ultrasound (US) of the thyroid gland reveals hypoechogenicity. Despite the direct correlation of hypoechogenicity with the levels of thyroid-stimulating hormone and antibodies of thyroid peroxidase and thyroglobulin, ~20% of this correlation is inconsistent, thus restricting the comprehensive utilisation of this valuable diagnostic sign. Thus, it is necessary to investigate the additional circumstances affecting the extent and features of the US hypoechogenicity of the thyroid gland. The technique for assessing thyroid hypoechogenicity was based on the basic setting of the US mode and visual assessment in percentage of gray relative to a gradient gray scale. Doppler mode was used. US data were compared with the results of hormonal and immune blood tests. The study contains the morphofunctional basis of the various US hypoechogenicities detected in the diffuse pathology of the thyroid gland has been presented, and the principles and probable mechanisms of widespread and segmental hypoechogenicity formation are disclosed for the first time. Furthermore, a mandatory Doppler involving thyroid parenchyma blood flow intensity and peak systolic blood velocity of thyroid arteries, which indicates the magnitude of neurovegetative influence, has been suggested. The results of the study shows revealed that the evaluation of the importance and features of US hypoechogenicity in various diffuse thyroid pathologies is probably based on a single system involving neurohumoral regulation, segmental arrangement and compensatory reserve state of the gland parenchyma.

Dual Oxidase 1, 2 Gene Expression in Women With Polycystic Ovary Syndrome (PCOS).

Dual oxidases (DUOX1, DUOX2) belong to the NADPH oxidase (NOX) family, which produce H2O2 necessary for thyroid hormone biosynthesis. This study aims to evaluate gene expression for DUOX1, DUOX2 in PCOS patients and its relation with thyroid hormone and magnesium levels. Totally 88 cases were studied including 24 people with PCOS and hypothyroidism, 44 people with PCOS and normal thyroid function, and 20 hypothyroid patients without PCOS. In comparison 40 healthy controls in the age group of 16-35 years matched for age group and BMI were evaluated. Using Vegaro syringe 5 cc of blood was sampled from all 128 people and after RNA extraction and cDNA synthesis using Real-Time PCR technique, the expression level of DUOX1 and DUOX2 genes was investigated. The results of hormonal tests showed that there is a significant difference between the level of T4, T3, and TSH hormones in hypothyroid patients with or without PCOS in comparison to the control group. Regarding the level of Mg, the results showed that there is a significant difference between the levels of Mg in PCOS group with or without hypothyroidism in comparison to the control group. Gene expression results showed that the relative changes of DUOX1 gene expression in different groups compared to the control group were significantly reduced P<0.05. In the polycystic group with hypothyroidism, the gene expression level showed a decrease compared to the normo-thyroid polycystic group and the hypothyroid non-PCO group, which was statistically significant P<0.05. According to the results of the present study and the previous studies that have been published in the field of Duox1, it can be assumed that the reduction of Duox1 expression can interfere with the oxidative stress system. Further studies with other molecular techniques may help to understand the exact action mechanism of these genes.

THU044 The Subcellular Localization Of β-Catenin Is Associated With Tumor Size And The Surgical Remission Rate In Growth Hormone-producing Pituitary Adenomas

Abstract Disclosure: S. Kuwabara: None. H. Kameda: None. H. Nomoto: None. K. Cho: None. A. Nakamura: None. Y. Ishi: None. H. Motegi: None. F. Miki: None. H. Miyoshi: None. T. Atsumi: None. The Wnt/β-catenin pathway is the best understood Wnt signaling pathway and controls cell proliferation. In the presence of Wnt, the translocation of β-catenin from the cytoplasm to the nucleus leads to pathway activation. It has been reported that the nuclear accumulation of β-catenin is associated with Ki-67 expression in pituitary adenomas and that the invasiveness of growth hormone (GH)-producing pituitary adenomas is associated with β-catenin expression. We aimed to clarify the effects of the Wnt/β-catenin pathway in GH-producing pituitary adenomas. We performed immunofluorescence staining using antibodies against GH and β-catenin in pathological samples of pituitary adenoma from 62 patients with acromegaly who underwent pituitary surgery at our hospital between January 2008 and December 2021. We also obtained clinical data for the patients, including the results of endocrine testing, and evaluated the relationships of key indices with the intracellular localization of β-catenin. Samples from 26 cases (42%) showed strong punctate expression of β-catenin in the nuclei (dot pattern (DP) group), and samples from 36 cases (58%) showed β-catenin expression in the cytoplasm or cell membrane (non-DP group). There were no differences in the sex, age, GH concentration, or insulin-like growth factor I (IGF-1) SD scores of the two groups, but the DP group had larger tumors (diameters 18±8 vs. 13±7 mm) and a higher prevalence of macroadenomas (77% vs. 53%). In the DP group, a paradoxical preoperative GH response (an increase of ≥30% of the basal concentration) to 75-g oral glucose tolerance testing was more frequent (46 vs. 22%, p&amp;lt;0.05) and postoperative remission was less frequent (23% vs. 50%, p&amp;lt;0.05). Accordingly, the Wnt/β-catenin pathway appears to be more active in the DP group. The larger tumors and lower postoperative remission rate of the DP group suggest that the Wnt/β-catenin pathway may influence tumor growth. Wnt/β-catenin pathway could play a major role in GH-producing pituitary tumor growth, therefore this pathway would be a potential therapeutic target in the affected patients. Presentation: Thursday, June 15, 2023

SAT453 Endocrine Related Adverse Events Of Immune Checkpoint Inhibitors In Cancer Patients Visiting Tertiary Care Center In Saudi Arabia

Abstract Disclosure: A.M. Alqahtani: None. A.S. Alghassab: None. L.A. Alghamdi: None. M. Almalki: None. Introduction: Immune checkpoint inhibitors (ICIs) have been approved for the treatment of a different types of cancers. Those agents may result in exaggerated immune response leading to numerous toxicities referred to as immune-related adverse events particularly endocrinopathies affecting most commonly the thyroid and pituitary glands. Methods: We carried out a retrospective analysis of endocrine dysfunction in cancer patients receiving immune checkpoint inhibitors therapy namely pembrolizumab, nivolumab and ipilimumab between July 2018 and July 2022. A total of 123 patients were included in this analysis. We reviewed pituitary-, thyroid-, and adrenal-related hormone test results, as well as the clinical perspective of patients, to identify and characterize cases of hypophysitis, hypothyroidism, thyroiditis, and adrenal dysfunction. Results: A total of 123 patients were included in our study. Among them, Female participants were 67 (54.5%) and males were 56 (45.5%) with mean age of 53.7 years. Majority of the included patients (91.1%) received single agent and only 8.9% received combination therapy. The most used ICI in our cohort was pembrolizumab 73.9% followed by nivolumab 17.8% and the combination of either one of them (beside ipilimumab) was used in 8.9% of the time. The most frequent indication for ICIs was breast cancer (27.6%) followed by lung cancer (19.5%) and metastatic renal cell carcinoma (8.9%). The average number of cycles was 12 cycles, and the average duration of treatment was 12 months. The total incidence of all endocrinopathies was 22.7%. Out of 123 patients, 24 patients developed thyroid dysfunction in term of thyroiditis (1), subclinical hypothyroidism (7) or overt hypothyroidism (16). Hypophysitis occurred in one patient only. There was no occurrence of new onset diabetes mellitus in all groups. Pembrolizumab is thought to be the culprit in 18 patients of thyroid dysfunction and the patient who developed hypophysitis. Nivolumab was responsible about 4 cases of thyroid dysfunction. The rest of the cases were attributed to the combination therapy. The mean TSH level at the time of hypothyroidism diagnosis (overt hypothyroidism and subclinical hypothyroidism) was 95.8 mIU/L. And the mean free thyroxine level in overt hypothyroidism group was 6.3 pmol/L. Conclusion: Our cohort demonstrated an increased risk of thyroid dysfunction among cancer patients who receive immune checkpoint inhibitors. Pituitary dysfunction is infrequent adverse effect of these agents. Endocrine assessment is recommended prior to initiation of therapy and periodically afterward. Special attention should be given to pituitary dysfunction as it might be overlooked due to non-specific symptoms. Presentation: Saturday, June 17, 2023

Evaluation of seasonal influences on adrenocorticotropic hormone response to the thyrotropin-releasing hormone stimulation test and its accuracy for diagnosis of pituitary pars intermedia dysfunction

Pituitary pars intermedia dysfunction (PPID) is an age-related neurodegenerative disorder, affecting >20 % of older horses. There is a need for improved endocrine tests for early disease detection, and the thyrotropin-releasing hormone (TRH) stimulation test has been recommended for diagnosis of early or mild cases. However, it is currently not recommended for year-round use due to marked seasonal variability. The aims of this cohort study were to evaluate effects of month and season on adrenocorticotropic hormone (ACTH) responses to TRH stimulation and to derive monthly cut-offs for PPID diagnosis.Sixty-three horses were assigned to control (n = 17), subclinical PPID (n = 21) and clinical PPID (n = 25) groups, based on a composite reference standard that combined clinical history and examination findings with endocrine test results. TRH stimulation tests were performed monthly for a 12-month period. Circannual changes were evaluated with one- and two-way repeated-measures analysis of variance and receiver operating characteristic curve analysis was used to derive cut-off values for basal and TRH-stimulated ACTH. TRH-stimulated ACTH concentrations were lowest in February-May and highest in August-October. Specificity of both basal and 30 min post-TRH ACTH was generally higher than sensitivity, and TRH stimulation had improved diagnostic accuracy compared to basal ACTH, although its sensitivity was not significantly greater year-round. TRH stimulation tests yielded considerably more positive results than basal ACTH in the subclinical group, but few additional positive results in clinical PPID cases. There were large differences between cut-offs that maximised sensitivity or specificity for TRH-stimulated ACTH, highlighting the importance of considering clinical presentation alongside test results in diagnostic decision-making.

Diagnostic workup of endocrine dysfunction in recurrent pregnancy loss: a cross-sectional study in Northeast China.

To evaluate the prevalence of abnormal endocrine dysfunction for recurrent pregnancy loss (RPL) amongst patients with two versus three or more pregnancy losses. This cross-sectional study retrospectively collected pre-pregnancy data of 537 women diagnosed with RPL in Shengjing Hospital of China Medical University from 2017 to 2022, including the baseline data of patients and the test results of endocrine factors. Several endocrine dysfunction included in this study were: thyroid dysfunction, obesity, hyperprolactinemia, polycystic ovary syndrome and blood glucose abnormality. Furthermore, vitamin D level were collected to study its relationship with endocrine dysfunction. Finally, we subdivided the patients according to the number of previous pregnancy loss and compared the prevalence of endocrine dysfunction between subgroups. Among 537 RPL patients, 278 (51.8%) patients had abnormal endocrine test results. The highest incidence of endocrine dysfunction was thyroid dysfunction (24.39%, 131/537), followed by hyperprolactinemia (17.34%, 85/490), obesity (10.8%, 58/537), polycystic ovary syndrome (10.50%, 56/533), and abnormal blood glucose (5.29%, 27/510). Only 2.47%(13/527) of patients have vitamin D level that reach the standard. After subdividing the population according to the number of pregnancy loss, we did not find that the incidence of endocrine dysfunction (P=0.813), thyroid dysfunction (P=0.905), hyperprolactinemia (P=0.265), polycystic ovary syndrome (P=0.638), blood glucose abnormality (P=0.616) and vitamin D deficiency (P=0.908) were different among patients with two versus three or more pregnancy losses. However, obesity (P=0.003) was found more frequently observed in patients with more times of pregnancy loss. The prevalence of endocrine dysfunction in RPL population is high. There is no difference in the prevalence of endocrine dysfunction, except for obesity, among patients with two or more pregnancy losses, which may suggest investigations of endocrine dysfunction when patients have two pregnancy losses.

Differentiation of Idiopathic Central Precocious Puberty From Premature Thelarche Using Principal Component Analysis.

Nonprogressive premature thelarche (PT) is a self-limiting variant of early puberty, while idiopathic central precocious puberty (ICPP) is a disorder that causes progressive development of secondary sexual characteristics and often requires treatment. The diagnostic differentiation between these conditions is important but can be challenging since they often both initially present clinically with isolated breast development. To describe relevant clinical variables in a large cohort of girls referred for early puberty, and to evaluate clinical and biochemical parameters to distinguish between girls with ICPP and PT. This retrospective study included 1361 girls referred with signs of early puberty to a single, tertiary center from 2009 to 2019. We evaluated clinical presentation, medical history, growth velocity, bone age, hormonal serum concentrations, and gonadotropin-releasing hormone (GnRH) test results. Central precocious puberty was diagnosed in 11% (ICPP: n = 143, organic CPP: n = 11) girls, whereas 8% (n = 91 girls) presented with PT. Receiver operating characteristic (ROC) analysis showed several biochemical and anthropometric markers as potential parameters to differentiate between ICPP and PT; however, none were individually adequate. Principal component analysis (PCA)-derived clinical and hormone profiles could predict girls with ICPP from girls with PT with a specificity of 90% and sensitivity of 84%, outperforming any single marker. Differentiation of girls with ICPP and PT can be supported by individual clinical and biochemical parameters. However, dimension reduction of clinical and hormonal profiles by PCA improved the diagnostic value, which in the future may support the diagnostic process as a supplement to the GnRH test in evaluation of pubertal disorders.

The impact of maternal electrolyte and albumin levels on the efficacy of single-dose methotrexate treatment for ectopic pregnancies.

This study aims to investigate the impact of maternal albumin and serum electrolyte levels on the efficacy of single-dose methotrexate (SDMtx) therapy for ectopic pregnancies. Building on previous research, recommendations are provided to enhance the success of SD-Mtx therapy in the management of ectopic pregnancy. Conducted at a tertiary center gynecology clinic, the study included 353 patients diagnosed with ectopic pregnancy and treated with SD-Mtx from 2012 to 2023. Patients who responded positively to SD-Mtx treatment comprised Group 1 (n=313), while those requiring surgical intervention due to failed SD-Mtx therapy constituted Group 2 (n=40). Through the hospital's digital database, patient data including complete blood count, biochemistry, and hormone test results were retrospectively examined. The mean β-hCG value was 1996 IU/mL for Group 1 in contrast to 2058 IU/mL for Group 2. There was no statistically significant difference in β-hCG levels between the two groups. Notably, Group 1 patients exhibited lower serum magnesium levels but higher potassium levels compared to Group 2 patients, with statistically significant differences. Furthermore, Group 1 patients had higher albumin levels than those in Group 2, with a statistically significant difference. Successful SD-Mtx treatment was associated with lower maternal serum magnesium levels and higher potassium and albumin levels. Considering electrolyte levels before administering SD-Mtx and addressing any imbalances could potentially enhance treatment success. Additionally, restoring low albumin levels might improve the efficacy of SD-Mtx treatment for ectopic pregnancies. While this study suggests these trends, further extensive studies with a larger sample size are necessary to establish more definitive evidence.

Immune Checkpoint Inhibitor-Induced Endocrine Adverse Events in Cancer Patients at a Tertiary Care Center in Saudi Arabia.

Immune checkpoint inhibitors (ICIs) are approved to treat several types of cancer, but they may cause an exaggerated immune response. This can lead to immune-related adverse events such as endocrinopathies, which mostly affect the thyroid and pituitary gland. A retrospective analysis was conducted on 125 cancer patients receiving ICIs (pembrolizumab, nivolumab, and ipilimumab) between July 2018 and July 2022. The study reviewed hormone test results and the clinical perspectives of patients to identify and characterize endocrine adverse events associated with ICI therapy in cancer patients. Among the 125 patients who were examined, a total of 26 patients (20.8%)encountered endocrine-relatedadverse effects.A total of 25 patientshad thyroid dysfunction. Hypophysitis was detected in a limited cohort of two patients, along with primary hypothyroidism. A case of newly diagnosed type 1 diabetes mellitus was seen in a single patient. None of the patients had primary adrenal insufficiency or parathyroid dysfunction. The administration of pembrolizumab was shown to be associated with the occurrence of thyroid dysfunction in 18 cases, as well as twocasesof hypophysitis. In contrast, nivolumab was responsible for inducing thyroid dysfunction in four cases. The remaining occurrences were attributable to combination treatment. The study found an increased risk of thyroid dysfunction among cancer patients receiving ICIs, while pituitary dysfunction was a less frequent adverse effect. It is recommended that an endocrine assessment be conducted before therapy initiation and periodically afterward.

Coexistence of TSH-secreting adenoma and primary hypothyroidism: a case report and review of literature

BackgroundThyrotropin-secreting adenoma (TSHoma) is the least common type of pituitary adenoma, these patients often present with symptoms of hyperthyroidism. When TSHoma patients combined with autoimmune hypothyroidism, it is critically difficult to diagnose for the specific confusion in the results of thyroid function test.Case presentationOne middle-aged male patient was presented with a sellar tumor on cranial MRI for headache symptoms. After hospitalization, a significant increase in thyrotropin (TSH) was revealed by the endocrine tests, while free thyronine (FT3) and free thyroxine (FT4) decreased, and the diffuse destruction of thyroid gland was revealed by thyroid ultrasound. Based on the endocrine test results, the patient was diagnosed as autoimmune hypothyroidism. After the multidisciplinary discussion, the pituitary adenoma was removed by endoscopic transnasal surgery, until the tumor was completely excised, for which TSHoma was revealed by postoperative pathology. A significant decrease of TSH was revealed by the postoperative thyroid function tests, the treatment for autoimmune hypothyroidism was conducted. After 20 months of follow-up, the thyroid function of patient had been improved significantly.ConclusionWhen the thyroid function test results of patients with TSHoma are difficult to interpret, the possibility of combined primary thyroid disease should be considered. TSHoma combined with autoimmune hypothyroidism is rare, which is difficult to diagnose. The multidisciplinary collaborative treatment could help to improve the outcomes of treatment.

Evaluation of Clinical and Laboratory Findings in the Differential Diagnosis of Central Precocious Puberty and Premature Thelarche.

In this study, it was aimed to examine the clinical and laboratory findings that can be used to predict central precocious puberty (CPP) in cases whose breast development started before the age of 8. The chronological age, anthropometric measurements, bone age (BA), hormone test results and pelvic ultrasonography findings of the cases were recorded. Those with a peak luteinizing hormone (LH) level of ≥5 IU/L in the gonadotropin-releasing hormone (GnRH) stimulation test were classified as CPP and those with a peak LH level of <5 IU/L were classified as prepubertal cases. A receiver operating characteristic (ROC) analysis was performed to determine the diagnostic accuracy of laboratory variables. A total of 297 female cases were included in the study. The age at the time of admission, height-standard deviation score (SDS), BA, the long axis of the uterus and the volumes of the right and left ovaries of the cases diagnosed with CPP were found to be significantly higher than those of the prepubertal group. The cut-off value providing the best sensitivity (99%) and specificity (99%) for the peak LH was found to be 4.55; the cut-off value providing the best sensitivity (94%) and specificity (85%) for the peak LH/follicle-stimulating hormone (FSH) ratio was found to be 0.32 and the cut-off value providing the best sensitivity (47%) and specificity (93%) for the basal LH was found to be 0.13. We believe that in female cases with early breast development, a peak LH level of ≥4.55 may possibly indicate CPP and a basal LH level of <0.13 can significantly rule out CPP.

ОСОБЕННОСТИ ПРАКТИЧЕСКОГО ИСПОЛЬЗОВАНИЯ СПЕЦИАЛИЗИРОВАННЫХ РЕФЕРЕНТНЫХ ИНТЕРВАЛОВ ГОРМОНАЛЬНЫХ ПОКАЗАТЕЛЕЙ У НЕСОВЕРШЕННОЛЕТНИХ СПОРТСМЕНОВ ДЛЯ ДИАГНОСТИКИ ЭНДОКРИННОЙ ПАТОЛОГИИ

Results of hormonal tests of highly qualified athletes can differ significantly from the general population standards, which makes their interpretation difficult. The purpose of this research was to compare the prevalence of hormonal changes in adolescent athletes according to both the standard and the specialized reference intervals (RI). Materials and methods used: 2550 adolescent athletes, of which 1483 (58.1%) boys and 1067 (41.9%) girls from 28 kinds of sport aged 14 years to 17 years and 11 months old (ME: 16.1±1.1 y/o). All the young athletes have undergone the study of thyroid-stimulating hormone (TSH), free thyroxine (T4 test), cortisol, somatotropic hormone (STH) and total testosterone (chemiluminescent method with Lazurite automatic analyzer by Dynex Technologies Inc., USA) as part of an in-depth medical checkup of athletes in accordance with the Order of the Ministry of Healthcare of Russia No. 134n dated March 01, 2016, on the basis of the Federal Scientific and Practical Center for Children and Adolescents of the Federal Medical and Biological Agency of Russia (Moscow, Russia). The assessment of the hormonal profile was carried out according to both the standard RI and the specialized RI for young athletes. Results: when assessing the endocrine status of young athletes according to the standard RI, the frequency of hormonal changes was 30.6%, and 22.1% according to the specialized RI. When using specialized RI in male athletes, an increase in TSH and cortisol is recorded 2 times less often (p&lt;0.001 for both parameters), an increase and decrease in total testosterone is determined in isolated cases, and hypersecretion of growth hormone is detected 6.5 times more often (p&lt;0.0001). An increase in TSH when assessed using specialized RI in female athletes occurs 2 times less often (p&lt;0.001). Hypersecretion of cortisol and growth hormone is recorded 20% (p=0.34) and 51% (p=0.02) less frequently, respectively. Conclusion: the use of the new RI does allow reducing of the frequency of detection of hormonal changes in adolescent athletes by 8.5% (p=0.03). The use of specialized RI of hormonal parameters in adolescent athletes to interpret TSH levels does not contradict with the modern clinical guidelines when deciding about the appointment of hormone replacement therapy for young athletes with subclinical hypothyroidism. The level of total testosterone, equal to 2.84 nmol/l, in young male athletes aged 16 to 17 y/o cannot be considered as a variant of the norm. The diagnostic value of determining growth hormone and cortisol in highly qualified athletes in adolescence is doubtful due to the high variability of the studied parameters and the complexity of interpreting the results obtained for practical use by a pediatric endocrinologist.

Are Currently Selected Laboratory Animals Useful in the Research of How Female Hormones Influence Orthodontic Biomechanics?

Animal testing was and remains the only method of introducing a certain treatment and medical procedure on humans. On the other hand, animals have their rights resulting from applicable legal acts, including Directive 2010/63/EU and, indirectly, the World Medical Association International Code of Medical Ethics (Helsinki Declaration, 1975, amended 2000). Thus, the question arises whether the credibility of the results of hormonal and orthodontic tests obtained so far and their usefulness for the human population is scientifically justified and worth sacrificing laboratory animals for. Especially that, according to statistical data, about 50% of laboratory animals are euthanized at the conclusion of the experiments. The aim of this article was to determine whether animal experiments are scientifically or morally justified in bringing significant evidence in studies that may validate the influence of changes in the concentration of female hormones secreted by the ovaries in various phases of the menstrual cycle in young patients on the duration of an increased tooth movement rate in orthodontic treatment. Papers reporting the results of the original research into female hormones, either natural or exogeneous ones, likely to alternate the orthodontic tooth movement rate were critically evaluated in terms of animal selection. Thorough analysis supported by veterinary knowledge proved that none of the publications enabled an extrapolation of the results to humans. The evaluation of the relation between the rate of tooth movement upon loading with orthodontic forces and hormones either secreted during the menstrual cycle of women or released from the contraceptives already present in the market, does not require sacrificing laboratory animals.

Management of thyroid crisis in a patient with febrile neutropenia

Introduction: Thyroid storm is a life-threatening complication of acute hyperthyroidism. The diagnosis of thyroid storm can only be based on its clinical manifestations, which include decreased consciousness, high fever, heart failure, diarrhea and jaundice. Antithyroid drug therapy (ATD) is one option for treating hyperthyroidism, along with surgery and radioactive iodine. ATD is thought to cause neutropenia through the agranulocytosis pathway. The most common symptoms are fever and sore throat accompanied by symptoms of a thyroid crisis. There is no specific method for predicting the appearance of febrile neutropenia caused by ATD. Routine complete blood counts in patients taking ATD should be performed. The diagnosis of febrile neutropenia due to ATD needs to be done immediately so that timely intervention can be carried out and reduce mortality. Case Presentation: a 25 years old female with thyroid crisis and febrile neutropenia. Clinical findings in the patient include fever, decreased consciousness, palpitation, excessive sweat, diarrhea, nausea and vomiting, weight loss, and the laboratory findings of leukopenia and neutropenia of (leucocyte 1.03x103/uL, neutrophil 1.90x103/ul). Ultrasonography examination of the thyroid reveals a thyroiditis image with multiple solid nodules. Blood smear examination reveals leukopenia with differential count examination of blood showed neutropenia, moderate lymphocytosis, erythrocyte hypochromic micrositer, poikilocytosis ovalocyte, teardrop cell, fragmentosist and target cell. Polychromasia and normoblast cells are not found. Conclusion: Thyroid crisis refers to the clinical findings and thyroid hormone test results. There is no specific method to predict the appearance of febrile neutropenia caused by the antithyroid drug. Frequent blood tests must be done in patients who consume antithyroid drugs.

COEXISTENCE OF PHEOCHROMOCYTOMA AND HYPERCORTISOLEMIA. DIAGNOSTIC DIFFICULTIES.

Aim: Our study aimed to present diagnostic problems in the case of hypercortisolism, pheochromocytoma, hypertension, type 2 diabetes, and chronic kidney disease. Materials and Methods: Description of a patient with resistant hypertension admitted to the Department of Endocrinology for hormonal diagnostics. The results of hormonal tests and imaging tests before the procedure were analyzed, and the patient's condition was checked after the procedure. The analysis was extended with a literature review, considering the diagnostic problems in the described case. Electronic databases were the primary way to search, mainly MEDLINE and PubMed. We described a case of a 61-year-old woman diagnosed with right adrenal pheochromocytoma, hypercortisolemia, chronic kidney disease, drug-resistant hypertension, type 2 diabetes, and hypercholesterolemia. During hospitalization in the Department of Endocrinology, i.a., imaging tests and tests to assess adrenal function were performed. During the diagnostic process, a decision was made to perform surgical treatment of the pheochromocytoma, resulting in clinical improvement of the patient's condition. Conclusions: The described case presents diagnostic problems endocrinologists face in the coexistence of several diseases. Often, the diagnosis to make a final diagnosis is complicated, hindered by the patient's multi-morbidity, as well as by the medications taken. There are few studies analyzing the coexistence of the diseases as described by us and their impact on the results of diagnostic tests that would facilitate the diagnosis.

PSUN25 Adrenal Incidentaloma: Is Interval Hormone Testing Warranted?

Abstract Background The prevalence of adrenal incidentaloma (AI) is increasing, with pressure on healthcare systems. While earlier guidelines recommended repeat endocrine testing to ensure stability, the recent European guidelines suggest that is not necessary if initial tests were reassuring. Aim To explore the utility of this guidance on repeat endocrine testing of AI. Methods Retrospective unselected review of AI cases reviewed before the European guidelines, based on local protocol (baseline overnight dexaethasone suppression test [ONDST] and plasma metanephrines +/- aldosterone: renin ratio [ARR] if hypertension or hypokalemia were present). At two years, the endocrine tests were repeated. We compared the baseline with the two-year follow-up data. Results We collected data on 54 patients initially identified (2011-2016). Post-ONDST cortisol (nmol/L): At baseline, 37/52 (71.1%), 12/52 (23.1%) and 3/52 (5.8%) had values &amp;lt;50, 51-138 and &amp;gt;138 respectively. After 2 years, 20/28 (71.4%) had results of &amp;lt;50, of which 18 were originally &amp;lt;50 and 2 were 51-138. The remaining 8 had values of 51-138, of which 6 had values of &amp;lt;50 at baseline and the other 2 had values of 51-138. Where there appeared some discordance, analysis of agreement (kappa statistics) showed an agreement of 71% (P=0.153). Wilcoxon signed-rank test to explore changes in the raw cortisol values showed that there was no significant difference (P=0.281). ARR: Data was available data on 40 patients, all of whom had normal ARR results. At 2 years there were data on 25 cases, 19 of which also had baseline values, while 6 had 2-year values but no baseline data. In all cases, 2-year ARR values were normal. Plasma metanephrines: Metanephrine: Data was available at baseline on 43 patients, with 8 (18.6%) having values above the reference range (&amp;gt;0.33 nmol/L). Of these 8, 7 had values between 0.33 and 0.46, with the remaining one having a single markedly raised value at 206.8 nmol/L. At 2 years, we had data on 23 of these 43 patients, out of whom 20 had normal levels at both baseline and 2 years, 2 had abnormal results at baseline but normal at 2 years and one normal baseline value but slightly raised (0.36 nmol/L) at two years, with normal normetanephrines (0.33 nmol/L). Normetanephrine: Of the 43 cases with baseline results, only one was abnormal at 802 nmol/L (the same patient with a plasma metanephrine of 206.8 nmol/L). In this case, the normetanephrine became unremarkable after 2 years indicative of successful surgery. The remaining 22 cases with data at 2 years all had values within the reference range. Conclusion There was no significant change in function after two-year follow up, as defined by abnormal endocrine test results. Therefore, our findings support the European guidelines advice that repeat testing is not warranted. Presentation: Sunday, June 12, 2022 12:30 p.m. - 2:30 p.m.

Clinical Features of Acute Coronary Syndrome in Patients with Coronary Heart Disease and Its Correlation with Tumour Necrosis Factor in Cardiology.

Tumour necrosis factor (TNF) levels are higher in patients who have experienced an acute ischemic stroke. Greater levels of TNF may not be linked to an increased risk of recurrent coronary events in the stable phase after myocardial ischemia (MI). Coronary atheroma is connected to endothelial and smooth muscle cells, as well as macrophages that emit the multifunctional cytokine tumour necrosis factor (TNF). Transplanted tumours become more vulnerable when TNF-α was first recognized to have a function in hemorrhagic necrosis. TNF-α has been demonstrated to induce heart failure, pulmonary edoema, and cardiomyopathy in people with advanced heart failure when it is elevated in the bloodstream. It has been postulated that prolonged overexpression of TNF-α after ischemia may contribute to poor cardiac outcomes by increasing TNF-α when the myocardium undergoes both temporary ischemia and reperfusion. A rise in TNF levels has been seen after a myocardial infarction, but it is unclear if these higher levels, found months after the initial event, are associated with an increased risk of subsequent heart attacks. We looked at TNF levels in the blood of 270 patients with coronary heart disease in the Chinese Hypertension League's Cholesterol and Recurrent Events (CARE) experiment to see if this notion held true. Recurrent coronary syndrome and coronary mortality were monitored prospectively in the participants. The min max imbalance normalization can be used to assess a patient's baseline characteristics, including hormone and cholesterol test results. Type 2 stimulant connection to aggregate the TNF-signaling qualities and fuzzy techniques was applied. There may now be enough preliminary evidence from the crucial bundle neural network analysis to identify the risk of coronary heart disease associated with TNF pregeneration studies. The tests were assessed using a variety of methods and performance metrics in a Matlab environment.

Investigation on influencing factors of blood indexes of interventional radiology workers

Objective: To analyze the influencing factors of blood indicators indexes of interventional radiology workers, and provide a theoretical basis for radiological occupational health monitoring, radiation protection monitoring and risk assessment. Methods: In March 2020, a total of 500 interventional radiology workers (interventional group) and 200 non-interventional radiology workers (control group) who underwent an occupational health examination in Liaoning Center for Disease Control and Prevention from 2018 to 2019 were selected as the subjects. The general information, occupation related information, blood routine, fasting blood glucose and thyroid stimulating hormone test results of the subjects were collected. The differences in the levels and abnormal detection rates of blood indexes between the two groups were compared. And the influencing factors of blood indexes of the intervention riodiology workers were analyzed. Results: The lymphocyte count of interventional group[2.10 (1.70, 2.50) ×10(9)/L] was lower than that of control group[2.20 (1.80, 2.60) ×10(9)/L], the difference was statistically significant (P<0.05) . The white blood cell count and lymphocyte count of interventional workers in the service age≤13 years were higher than those of service age≥28 years group, and fasting blood glucose was lower than those of service age ≥28 years group (P<0.05) . The detection rate of abnormal fasting blood glucose of interventional radiology workers in the service age ≤13 years group was lower than that of the service age 14-27 years and service age ≥28 years (P<0.05) . The lymphocyte count and platelet count of interventional radiology workers in annual effective dose<0.5 mSv group was higher than that of annual effective dose≥1 mSv group (P<0.05) . The results of multi-factor linear regression analysis showed that service age, annual effective dose and female gender were the influencing factors of lymphocyte count of interventional radiology workers (b=-0.008, -0.110, -0.167, P<0.05) . Conclusion: Long-term low-dose radiation exposure had certain influence on the lymphocyte count of interventional radiology workers. Service age, annual effective dose and gender are the influencing factors of lymphocyte count in interventional radiology workers. It should be reinforced to the radiological protection monitoring and risk assessment on interventional radiology workers.