Evaluation of serum uric acid level in type 1 diabetes mellitus patients and investigation of the relationship between uric acid level and microvascular complications

Tip 1 diabetes mellitus (T1DM) pankreasta bulunan beta hücrelerinin hasarı sonucu gelişen ve insülin eksikliği ile karakterize kronik metabolik bir hastalıktır. Nefropati, retinopati ve nöropati diyabetin bilinen mikrovasküler komplikasyonlarıdır. T1DM hastalarında serum ürik asit (SÜA) düzeyini değerlendiren az sayıda çalışma mevcuttur ve SÜA düzeyinin mikrovasküler komplikasyonlar ile ilişkisi tartışmalıdır. Bu çalışmada T1DM hastalarında SÜA düzeyini değerlendirmeyi ve SÜA düzeyinin mikrovasküler komplikasyonlar ile ilişkisini incelemeyi amaçladık. Bu çalışma 18 yaşından büyük T1DM tanısı ile takipli 160 hastanın ve 85 sağlıklı kontrolün dosyalarının retrospektif değerlendi rilmesi ile yapıldı. T1DM hastalarında kontrol grubuna göre SÜA düzeyi düşük bulundu (p:0.035) ve SÜA düzeyi ile HbA1c arasında negatif kolerasyon saptandı (r:-0.172, p:0.03). SÜA ile kreatinin düzeyi arasında pozitif kolerasyon saptandı (r:0.269, p:0.001). Nefropati gelişen hastalarda SÜA düzeyi diyabet süresinden bağımsız olarak yüksek saptanırken (r2:0.185, p:0.027) nöropati ve retinopatisi mevcut olan hastalarda SÜA yüksekliği bağımsız bir risk faktörü olarak saptanmadı. Sonuç olarak T1DM hastalarında kontrol grubuna göre daha düşük SÜA düzeyi bulunmasına rağmen diyabetik nefropati gelişen hastalarda SÜA düzeyinin yüksek olduğu saptandı. Yüksek SÜA düzeyinin diyabetik nefropati gelişiminde risk faktörü olup olmadığını belirlemek için daha ileri prospektif çalışmalar gereklidirType 1 diabetes mellitus (T1DM) is a chronic metabolic disease that develops due to damage to beta cells in the pancreas and is characterized by insulin deficiency. Nephropathy, retinopathy, and neuropathy are known microvascular complications of diabetes. There are few studies evaluating serum uric acid (SUA) levels in T1DM patients, and the relationship of SUA level with microvascular complications is controversial. In the current study, we aimed to evaluate the SUA level in T1DM patients and investigate the relationship between SUA and microvascular complications. The present study was conducted by retrospectively evaluating the files of 160 patients and 85 healthy controls who followed up with a diagnosis of T1DM over the age of 18. The SUA level was lower in T1DM patients than in the control group (p: 0.035), and a negative correlation was found between the SUA level and HbA1c (r:-0.172, p: 0.03). There was a positive correlation between SUA and creatinine level (r: 0.269, p: 0.001). The SUA level was found to be higher in patients with nephropathy regardless of the duration of diabetes (r2: 0.185, p: 0.027). Elevated SUA level was not found as an independent risk factor in patients with neuropathy and retinopathy. In conclusion, although there was a lower SUA level in T1DM patients than in the control group, SUA level was elevated in patients with diabetic nephropathy. Further prospective studies are required to determine whether elevated SUA level is a risk factor for the development of diabetic nephropathy

A rare cause of thyrotoxicosis: TSH-secreting pituitary adenoma

Bu çalışma,18-22 Mayıs 2022 tarihlerinde Antalya’da düzenlenen 43. Türkiye Endokrinoloji ve Metabolizma Hastalıkları Kongresi‘nde bildiri olarak sunulmuştur.Tiroid stimüle edici hormon (TSH) salgılayan hipofiz adenomu (TSHoma) tirotoksikozun nadir görülen sebeplerinden biridir. Tanı genellikle uygunsuz TSH yüksekliğinin araştırılması ya da hipofizer insidentalomanın tetkiki sırasında konulmaktadır. Olgumuz bilinen poliskistik over sendromu olan 26 yaşında kadın hasta olup altı aydır olan titreme, terleme ve baş ağrısı yakınmalarıyla kliniğimize başvurdu. Laboratuvar analizlerinde serum serbest T3 ve T4 düzeyi yüksek iken TSH düzeyi normal sınırlarda saptandı. Seks hormonu bağlayıcı globülin (SHBG) düzeyi normal sınırlardaydı Manyetik rezonans görüntüleme sonucunda hipofiz bezinde makradenom izlendi. TRH uyarı testine TSH yanıtı saptanmadı. TSHoma tanısı alan hastada preoperatif oktreotid ve metimazol tedavisi ile ötiroidizm sağlandıktan sonra hipofiz cerrahisi uygulandı. Cerrahi materyalin histopatolojik incelemesinde fibrotik değişikliklerle birlikte prolaktin ile pozitif, TSH ile negatif boyanma izlendi. Bu olgu sunumunda SHBG düzeyi normal ve TSH boyaması negatif olmasına rağmen uygunsuz TSH salınımı nedeniyle TSHoma tanısı alan bir hastayı sunmayı amaçladık.Thyroid-stimulating hormone (TSH) secreting pituitary adenoma (TSHoma) is one of the rare causes of thyrotoxicosis. The diagnosis is usually made during investigating inappropriate TSH elevation or pituitary incidentaloma. Our patient, a 26-year-old female patient, known to have polycystic ovary syndrome, was admitted to our clinic with complaints of tremor, sweating, and headache for six months. Laboratory analysis showed serum free T3 and T4 levels were elevated, while TSH levels were within normal limits. Sex hormone binding globulin (SHBG) level was within normal limits. Macroadenoma was observed in the pituitary gland at magnetic resonance imaging. TSH secretion did not increase much in response to the thyrotropin-releasing hormone. The patient was diagnosed with TSHoma, and pituitary surgery was performed after euthyroidism was achieved with preoperative octreotide and methimazole treatment. Positive staining with prolactin and negative staining with TSH were observed along with fibrotic changes in the histopathological examination of the surgical material. We aimed to present a patient diagnosed with TSHoma due to inappropriate TSH secretion, although her SHBG level was normal and TSH staining was negative in the current case report

Struma ovarii presenting with Hashimoto's thyroiditis: a case report

Abstract Introduction We report the case of a patient diagnosed with a struma ovarii with lymphocytic thyroiditis of her ectopic thyroid tissue. We believe that this case presents an unusual variation of a struma ovarii and a rare presentation of subclinical hyperthyroidism. Case presentation A 17-year-old Caucasian female patient who had undergone an ovariectomy and been diagnosed with a struma ovarii was subsequently found to have persistent subclinical hyperthyroidism with a low radioiodine uptake. Abdominal magnetic resonance imaging and iodine-131 whole body scanning showed no residue or recurrence and a thyroid ultrasonography was normal. Laboratory and histopathological findings suggested Hashimoto's thyroiditis as the cause of the subclinical thyrotoxicosis, which had presumably started at the ectopic tissue. Conclusion Struma ovarii is a rare cause of thyrotoxicosis, and can be difficult to diagnose in the presence of co-existing thyroid disorders. In patients with a struma ovarii who have not undergone thyroidectomy, there is no common consensus on management in terms of residue, recurrence or metastasis. Autoimmune thyroiditis must be kept in mind for a differential diagnosis.</p

Polycystic Ovary Syndrome and the Relationship of Cardiovascular Disease Risk

Polycystic ovary syndrome (PCOS) is a common endocrine disorder affecting at least 5-10% of women of reproductive age. PCOS is characterized by hyperandrogenism, menstrual disturbance, anovulation, infertility and obesity and, also associated with increased number of cardiovascular risk factors and early atherosclerosis. Hyperinsulinemia is a frequent finding in PCOS patients and has cause-and-effect relationship with low-grade chronic inflammation and increased risk of cardiovascular disease. Turk Jem 2013; 17: 33-

Factors associated with glomerular filtration rate variation in primary hyperparathyroidism after parathyroidectomy

WOS: 000458367000043PubMed: 30761868Background/aim: Prolonged hypercalcemia impairs renal function, and a reduced glomerular filtration rate (GFR) is typical in advanced primary hyperparathyroidism (PHPT). There are scarce data related to predictors of renal impairment in patients with PHPT. Hence, we aimed to evaluate changes in kidney function in PHPT patients after parathyroidectomy (PTX) and identify factors associated with GFR variation in these patients. Materials and methods: One hundred and twenty-five patients with PHPT who underwent surgery between 2012 and 2014 were enrolled in the study. Patients were divided into two groups according to GFR values: patients whose GER was lower than 60 mL/min/1.73 m(2) and higher than 60 mL/min/1.73 m(2). Demographic and laboratory parameters were compared before and 6 months after parathyroidectomy. Results: Prevalence of antihypertensive drug users and patients with renal cysts and parathormone (PTH) and alkaline phosphatase levels were higher in patients with GFR of >60 than in GFR of = 60 but GFR did not change in the two groups after parathyroidectomy. After parathyroidectomy, calcium and PTH decreased but 25(OH)D3 and phosphorus increased in the two groups. In multiple regression analysis, age, calcium, and baseline GFR were independent predictors of GFR variation. Parathyroid adenoma volume and urinary calcium were not independent predictors of GFR change. Conclusion: Older age, higher preoperative calcium, and GFR were factors associated with GFR increase in PHPT patients after parathyroidectomy. Further renal impairment was prevented by parathyroidectomy in PHPT patients

Levels of fibrinogen, high sensitive C-reactive protein and lipid parameters as a cardiovascular risk factor in subclinical hypothyroid patients

Amaç: Subklinik hipotiroidi hafif orta tiroid yetmezlik durumudur. Kardiyovasküler risk artışı ile ilişkili bir durumdur. Dislipidemi ve koagülasyonla ilgili parametrelerdeki değişiklikler subklinik hipotiroidide potansiyel olarak ateroskleroz gelişiminden sorumlu olabilir. Bu çalışmada, subklinik hipotiroidili hastalar ile kontrol grubu arasında kardiyovasküler risk faktörü olarak fibrinojen, yüksek duyarlılıklı C-reaktif Protein ve lipid parametreleri bakımından fark olup olmadığını araştırmayı amaçladık.Gereç ve Yöntemler: Yeni tanı almış 44 subklinik hipotiroidili hasta ve kontrol grubu olarak ise bilinen herhangi bir hastalığı olmayan sağlıklı 44 kişi çalışmaya alındı. Sigara ve alkol kullananlar çalışmaya dahil edilmedi. Serbest tiroid hormonları normal sınırlarda iken serum TSH değerinin 4 mIU/L'den büyük olması subklinik hipotiroidi olarak tanımlandı. Vaka ve kontrol grubu fibrinojen, yüksek duyarlılıklı C-reaktif Protein ve lipid parametreleri bakımından birbiriyle karşılaştırıldı.Bulgular: Vaka grubunda fibrinojen, yüksek duyarlılıklı C-reaktif Protein ve total kolesterol düzeyi kontrol grubuna göre istatistiksel anlamlı olarak daha yüksek saptandı (p<0,001, p<0,001, p=0,042, sırasıyla). Vaka grubunda ortalama TSH düzeyi 6,3 mIU/L olup TSH düzeyine göre alt gruplar incelendiğinde fibrinojen, yüksek duyarlılıklı C-reaktif Protein ve total kolesterol bakımından TSH değeri 6-10 mIU/L arasında olan grupla 10 mIU/L 'dan büyük olan grup arasında anlamlı fark izlenmedi (p=0,283, p= 0,140, p=0,283, sırasıyla).Sonuçlar: Bu çalışmanın sonuçları fibrinojen, yüksek duyarlılıklı C-reaktif Protein ve total kolesterol düzeylerinin subklinik hipotiroidili hasta grubunda kontrol grubuna göre anlamlı oranda yüksek olduğunu gösterdi. Bu faktörler, subklinik hipotiroidi varlığında artmış ateroskleroz riskine katkıda bulunabilirAim: Subclinical hypothyroidism is defined as mild thyroid failure and it is associated with an increase in cardiovascular risk. The changes in the parameters related to dyslipidemia and coagulation may potentially contribute to the development of atherosclerosis in subclinical hypothyroidism. In this study, we aimed to investigate the difference between the subclinical hypothyroid patients and the control group in terms of fibrinogen, high sensitive C-reactive protein and lipid parameters as a cardiovascular risk factor. Material and Methods: The participants of this study were 44 newly-diagnosed subclinical hypothyroid patients. The control group was composed of 44 healthy subjects with no specific disease. Smokers and alcohol consumers were not included in the study. Serum TSH level greater than 4 mIU/L was defined as subclinical hypothyroidism while free thyroid hormones within normal limits. The patient and the control group were compared in terms of fibrinogen, high sensitive C-reactive protein and lipid parameters. Results: Fibrinogen, high sensitive C-reactive protein and total cholestrol levels in the patient group were found statistically higher than those of the control group (P < 0.001, P < 0.001, P = 0.042, respectively). The average TSH level was 6.3 mIU/L in the patient group. When the sub-groups were examined according to their TSH levels in terms of fibrinogen, high sensitive CRP and total cholestrol, we observed no statistically significant difference between the group with TSH level between 6-10 mIU/L and the group with TSH level higher than 10 mIU/L (P = 0.283, P = 0.140, P = 0.283, respectively).Conclusion: The results of this study showed that, in the subclinical hypothyroid patients fibrinogen, high sensitive C-reactive protein and total cholesterol levels were statistically higher than those of the control group. These factors may contribute to increased atherosclerosis in subclinical hypothyroidis

A rare case of ectopic ACTH syndrome originating from malignant renal paraganglioma

SUMMARY Ectopic adrenocorticotropic hormone (ACTH) syndrome is characterized by hypercortisolism due to the hypersecretion of a non-pituitary ACTH-secreting tumor leading to Cushing’s syndrome. Only a few cases have been reported previously as causing ectopic ACTH related to paraganglioma. Herein, we present a case of Cushing’s syndrome, in who was proved to be attributable to an ACTH-secreting renal malignant paraganglioma. A 40-year-old woman presented with a five-month history of newly diagnosed hypertension and diabetes, weakness, hyperpigmentation, oligomenorrhea, hirsutism, and acneiform lesions. She showed cushingoid features, including moon face, facial hirsutism, facial and truncal acne, hyperpigmentation, and severe muscle weakness of the limbs. She did not have other findings such as striae, supraclavicular fat accumulation, and buffalo hump. Laboratory examination showed the presence of hypopotasemia, hyperglycemia, hyperthyroidism, and leukocytosis. The serum levels of ACTH, cortisol, and urine-free cortisol were markedly elevated. Results of an overnight 2-mg dexamethasone suppression test included a basal serum cortisol of 61.1 mcg/dL (normal range: 4.6-22.8 mcg/dL) and a cortisol value of 46.1 mcg/dL after dexamethasone administration. There was no suppression found after 2-day 8-mg dexamethasone administration. Magnetic resonance imaging (MRI) of the pituitary gland indicated two microadenomas. An abdominal MRI scan revealed horseshoe kidney, bilateral adrenal hyperplasia, and masses with dimensions of 35 x 31 mm in the left kidney. Inferior petrosal sinus sampling showed no evidence of a central-to-peripheral gradient of ACTH. A positron emission tomography/computed tomography scan showed intense increased activity in the lower pole of the left kidney. Left adrenalectomy and left partial nephrectomy were performed. The resected tumor was diagnosed as the ACTH-secreting paraganglioma in the pathological examination, which was confirmed by immunohistochemical studies with chromogranin A, synaptophysin, and ACTH. Only a few cases of paragangliomas as a cause of ectopic ACTH syndrome have been reported. To our knowledge, this is the first case of renal paraganglioma resulting in Cushing’s syndrome due to ectopic ACTH hypersecretion