Increase in subcutaneous adipose tissue in the frontal scalp may be associated with androgenetic alopecia and metabolic syndrome.

OBJECTIVE: Recent studies have suggested that androgenetic alopecia (AGA) may be associated with other disorders, especially metabolic syndrome (MetS). This study aimed to determine whether a connection exists between MetS and AGA based on the thickness of the subcutaneous adipose tissue in the scalp. PATIENTS AND METHODS: This cross-sectional study included 34 participants with AGA who had MetS and 33 participants with AGA who did not have MetS. The Hamilton-Norwood scale was employed for classifying AGA and MetS was identified using the US National Cholesterol Education Programme Adult Treatment Panel III (NCEP-ATP III criteria). The body mass index (BMI), blood pressure, and lipid profiles of the participants were assessed. Hepatosteatosis and the thickness of the subcutaneous adipose tissue in the scalp were examined using ultrasonography. RESULTS: Compared with the control group, the MetS+AGA group had higher BMI (p = 0.011), systolic blood pressure (p < 0.001), diastolic blood pressure (p < 0.001) and waist circumference (p = 0.003). Furthermore, the MetS+AGA group had a higher prevalence of dyslipidemia, hypertension (HT) and diabetes mellitus (DM) and higher rates of grade 6 alopecia than the control group (p = 0.019). Compared with the control group, those with MetS had thicker subcutaneous adipose tissue in the frontal scalp (p = 0.018). CONCLUSIONS: The subcutaneous adipose tissue in the frontal scalp was thicker in individuals with AGA who had high Hamilton scores. The concomitance of AGA and MetS may be associated with a high increase in subcutaneous adipose tissue and less favorable metabolic parameters.

Vitamin B12, folic acid, vitamin D, iron, ferritin, magnesium, and HbA1c levels in patients with diabetes mellitus and dental prosthesis.

OBJECTIVE: Diabetic patients may have vitamin deficiencies, which are important in the follow-up and complications of diabetes for various reasons. It may be beneficial to include the use of dental prosthesis among the parameters that should be investigated as a cause of vitamin deficiency during the management and follow-up of diabetes mellitus. We aimed to investigate the association between serum vitamin B12, folic acid, 25-hydroxyvitamin D, ferritin, iron, magnesium, and HbA1c levels in diabetic patients with and without removable dental prosthesis and in non-diabetic patients with prosthesis. PATIENTS AND METHODS: This study is a single-center case-control study. Participants were classified into the following groups: 1) Diabetic patients (n = 528) with prosthesis, 2) non-diabetic patients with prosthesis (n = 121) and 3) diabetic patients without prosthesis (n = 100). Vitamin B12, 25-hydroxyvitamin D, folic acid, ferritin, iron, magnesium, and HbA1c levels were measured and compared across the groups. RESULTS: A significant difference was observed between the groups with respect to the above parameters. Vitamin B12 levels were determined to be higher in the diabetic group without prosthesis. 25-hydroxyvitamin D levels were found to be significantly higher in the non-diabetic group with a prosthesis than in the other two groups. There was no statistical difference in the iron levels between the groups. Ferritin levels were observed to be significantly higher in the diabetic group with prosthesis compared to the other two groups. Magnesium levels were significantly different between all the three groups. The highest magnesium levels were found in the non-diabetic group with prosthesis. HbA1c levels were found to be higher in the diabetic group with prosthesis. Magnesium levels were correlated with 25-hydroxyvitamin D levels, but a negative correlation was observed between these and HbA1c. CONCLUSIONS: Serum vitamin B12 levels were lower in the diabetic and non-diabetic groups with prosthesis compared to the diabetic group without prosthesis. 25-hydroxyvitamin D levels were lower and ferritin was higher in the diabetic groups with and without prosthesis. Magnesium levels were significantly lower in the diabetic group with a prosthesis than in the other two groups. The mean HbA1c level was higher in the diabetic group with prosthesis. The comparison of diabetic patients receiving metformin revealed a higher pronounced vitamin B12 deficiency in the diabetic group with prosthesis. These findings show that those diabetic patients with prosthesis should be evaluated for vitamin B12, 25-hydroxyvitamin D, and magnesium deficiency.

Investigation on the prevalence of thyroid cancer in Graves' patients in northeastern part of Turkey: is surgery a better option for patients with Graves' disease who develop antithyroid drug-related major adverse events?

OBJECTIVE: To determine the prevalence of thyroid cancer in Graves' patients who underwent surgical intervention with and without a history of anti-thyroid drug related major adverse events. PATIENTS AND METHODS: The data of 530 patients with Graves' disease between 2015 and 2020 were retrospectively reviewed. Preoperative ultrasonography reports and thyroid-stimulating hormone receptor antibody values and postoperative histopathological findings were available for 94 patients that had undergone total thyroidectomy procedure. We compared the prevalence of thyroid cancer between patients with and without a history of anti-thyroid drug related major adverse events. RESULTS: Thyroid cancer was detected in 31 of 94 patients that had undergone total thyroidectomy. Of these patients, 18 had at least one nodule; however, thyroid cancer was incidentally detected in 13 patients without nodule. The 31 patients had the following cancer subtypes: 22 had papillary microcarcinoma, 8 papillary carcinoma and 1 noninvasive follicular thyroid neoplasm with papillary-like nuclear features. While thyroid cancer was present in half of the patients operated owing to anti-thyroid drug-related major adverse event, it was detected in 30% of the patients operated due to other reasons. CONCLUSIONS: In the present study, the prevalence of thyroid cancer among patients with Graves' disease was found to be much higher than those of other studies in the literature, suggesting that surgery can be considered primarily for the treatment of Graves' disease. Considering the surgical option in the first plan instead of radioactive iodine therapy appears to be reasonable in patients who develop anti-thyroid drug-related major adverse events.

Interferometric spectroscopy of scattered light can quantify the statistics of subdiffractional refractive-index fluctuations.

Despite major importance in physics, biology, and other sciences, the optical sensing of nanoscale structures in the far zone remains an open problem due to the fundamental diffraction limit of resolution. We establish that the expected value of spectral variance (Σ[over ˜](2)) of a far-field, diffraction-limited microscope image can quantify the refractive-index fluctuations of a label-free, weakly scattering sample at subdiffraction length scales. We report the general expression of Σ[over ˜] for an arbitrary refractive-index distribution. For an exponential refractive-index spatial correlation, we obtain a closed-form solution of Σ[over ˜] that is in excellent agreement with three-dimensional finite-difference time-domain solutions of Maxwell's equations. Sensing complex inhomogeneous media at the nanoscale can benefit fields from material science to medical diagnostics.

Determination of trace element levels in human blood serum from patients with type II diabetes using WDXRF technique: a comparative study.

The present study investigated the trace element contents in the blood sera of type II diabetic patients with and without complication as compared to non-diabetic healthy controls. The elements Na, Mg, Al, Si, P, S, Cl, K, Ca, Cr, Mn, Fe, Ni, Cu, Zn, Se, Mo, Cd, Hg and Pb were determined by wavelength dispersive x-ray fluorescence spectrometry. Blood serum levels of some trace elements in patients with type II diabetes mellitus showed significant deviations from healthy controls. Mean Ca, Cu and Se (p< 0.05) concentrations (%) in both diabetic patients with and without complication were significantly lower than those in healthy controls. When compared with non-diabetic control group, the Mg concentrations of patients without complication were decreasing while Mg levels of patients with at least one complication were increasing (p< 0.05). Si levels were significantly higher both in diabetic patients with complication and without complication than healthy controls (p< 0.05). K and Hg levels of diabetic patients with at least one complication have significantly deviated from both healthy controls and patients without complication (p< 0.05). There were no significant differences between control group and diabetic patients concerning height, age, weight and body mass index (p> 0.05).

Bone turnover markers in patients with type 2 diabetes and their correlation with glycosylated haemoglobin levels.

The aim of this prospective, longitudinal study was to investigate, over a period of 12 months, the effects of metabolic control on bone turnover markers in patients with type 2 diabetes mellitus. The study included 17 male and 18 female patients with type 2 diabetes, aged 37 - 66 years. Mean follow-up period was 12 +/- 1.2 months. Mean glycosylated haemoglobin (HbA(1C)) levels were 10.6% +/- 1.6% at the start of the study and decreased to 7.7% +/- 1.0% by the end of the study. Levels of the bone resorption markers, urinary deoxypyridinoline and N-telopeptide, were 28.6 +/- 11.6 nmol/mmol creatinine and 93.6 +/- 13.7 nmol bone collagen equivalents [BCE]/mmol creatinine, respectively, at the start of the study, and decreased significantly to 17.9 +/- 7.1 nmol/mmol creatinine and 67.8 +/- 12.8 nmol BCE/mmol creatinine, respectively, by the end of the study. Bone formation parameters also significantly decreased in parallel with HbA(1c) levels over the study period. It is concluded that effective management of metabolic disorder in patients with type 2 diabetes plays an important contribution to bone turnover improvement.

Serum lipoprotein(a) level and its clinical significance in patients with systemic lupus erythematosus.

Systemic lupus erythematosus (SLE) is a classic autoimmune disease characterised by the production of autoreactive T cells and autoantibodies that may affect every organ system. It has long been established that there is a close association between cholesterol- rich lipoproteins (such as low-density lipoprotein-cholesterol) and cardiovascular disease in patients with SLE. In this study, we evaluated total cholesterol, triglycerides, HDL-cholesterol, LDL-cholesterol, VLD-cholesterol, apolipoprotein A-1, apolipoprotein B, and cholesterol-rich serum lipoprotein(a) [Lp(a)], which is accepted to be an independent risk factor for cardiovascular disease and for atherosclerosis, in 24 patients (mean age +/- SD 31.4 +/- 9.7 years, range 16-47, 22 F) with active SLE. Twenty-six healthy age- and sex-matched (mean age +/- SD 29.7 +/- 11.3 years, range 18-49 years, 22 F) subjects were included as a control group. In patients with SLE Lp(a) levels, total cholesterol, triglycerides and VLDL-cholesterol were found to be higher and HDL-cholesterol, apolipoprotein A-1 to be lower than those of controls. In conclusion, because serum Lp(a) levels are significantly higher (P<0.01) in patients with SLE, these patients have a risk of developing cardiovascular disease and atherosclerosis. Patients with SLE should be followed up with this in mind.

Gingival enlargement in acromegaly.

In this study, we investigated gingival enlargement in patients with acromegaly as a component of the disease. Eleven patients (5 males, 6 females) were evaluated. Diagnosis was confirmed with typical clinical features and laboratory. Oral examinations were carried out by the same periodontist. During the examination, plaque index, gingival index, probing pocket depths, and gingival enlargement values were evaluated. Duration of the disease was between 0.2 and 13 yr. Seven patients had pituitary macroadenomas and four had microadenomas during their initial diagnosis. Only one patient was newly diagnosed. The other patients had previously undergone surgery. Gingival enlargement was found in eight patients. Seven patients with gingival enlargement also had prognathism, and one patient had prognathism associated with gingival enlargement. These findings demonstrate that acromegaly that results in overgrowth in various organs should be considered one of the causes of gingival enlargement.

The effects of high haematocrit levels on glucose metabolism disorders.

There has been only limited research investigating the possible association between raised haematocrit levels, glucose intolerance and type 2 diabetes. In the present study, we explored the association between high haematocrit levels and impaired glucose tolerance by performing oral glucose tolerance tests in 46 patients with chronic obstructive pulmonary disease and no previous history of diabetes mellitus or glucose intolerance. A glucose metabolism disorder was observed in 12 (26%) patients (type 2 diabetes in six patients and impaired glucose tolerance in a further six). There was a significant association between high haematocrit levels and the presence of a glucose metabolism disorder, which was independent of other risk factors. High haematocrit levels may be an independent risk factor for type 2 diabetes and impaired glucose tolerance.

A hydatid cyst of the thyroid gland.

Echinococcosis, although eradicated in many countries, is still widespread in communities in which agriculture is dominant, and cystic hydatidosis is a significant public health problem in regions where echinococcosis is endemic. Hydatid cysts may be found in almost any part of the body, but most often in the liver and lungs. Other organs affected occasionally include the brain, muscle, kidney, bone, heart and pancreas. This report documents a rare case with a cystic nodule in the thyroid detected by ultrasonography. The patient was a 40-year-old woman with an euthyroid multinodular goitre. Ultrasonography revealed a cystic nodule, and the ultrasonic appearance of the cyst liquid showed multiple echoes, suggesting that the nodule could be a hydatid cyst. Bilateral subtotal thyroidectomy was performed. Postoperative examination of the nodule showed it to be a solitary primary thyroid hydatid cyst.

Thyroid abnormalities in lithium-treated patients with bipolar affective disorder.

The thyroid functions of 42 subjects with bipolar affective disorder receiving regular lithium therapy were analysed and their thyroid glands were examined by ultrasonography. Following the receipt of lithium therapy (duration 4-156 months), three subjects displayed subclinical hypothyroidism (7.1%), three subclinical hyperthyroidism (7.1%) and one hyperthyroidism (2.4%). Moreover, goitre was detected in 16 (38.1%) subjects. An increase in the conversion of free thyroxine (T4) to free tri-iodothyrosine (T3), which is an indication of mild thyroid dysfunction, was identified in 20 (47.6%) subjects, and was mostly seen in male subjects under 40 years of age and in those having weight gain. In conclusion, some thyroid dysfunctions were observed in the patients treated with lithium.

Relationship between electroneurographic changes and serum ubiquitin levels in patients with type 2 diabetes.

OBJECTIVE: The aim of the present study was to investigate any relationship between serum ubiquitin levels and electroneurographic changes in peripheral nerves for patients with type 2 diabetes. RESEARCH DESIGN AND METHODS: The study involved 34 patients (19 men, 15 women; mean age 46 +/- 13 years) with type 2 diabetes. Serum ubiquitin values were measured by sandwich enzyme-linked immunosorbent assay Measurement of nerve conduction velocity (NCV) was performed on three motor (median, tibial, and peroneal) and three sensory (median, ulnar, and sural) nerves. The value of motor compound muscle action potential (CMAP) was obtained from the sum of median, tibial, and peroneal motor nerve amplitudes, and sensory compound nerve action potential (CNAP) was computed as the sum of median and ulnar sensory nerve amplitudes. RESULTS: Patients with diabetes were divided into three groups: group 1 (n = 8) had normal electroneurography results, group 2 (n = 8) had slowed NCV, and group 3 (n = 18) had low values of motor CMAP and/or sensory CNAP as well as slowed NCV. Mean ubiquitin level in group 3 (20.4 +/- 2.9 ng/dl) was significantly higher than that in group 1 (11.2 +/- 1.1 ng/dl, t = 11.5, P < 0.0001) and group 2 (13.2 +/- 2.7 ng/dl, t = 5.9, P < 0.0001). Serum ubiquitin levels were inversely correlated with motor CMAP (r = -0.68) and sensory CNAP (r = -0.61) values. CONCLUSIONS: The results of this study indicate that there could be a relationship between the diminished amplitudes of axons of the peripheral nerve and the increase in serum ubiquitin levels in patients with type 2 diabetes. Further studies are required to confirm this relationship.