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1.
Horm Metab Res ; 54(4): 232-237, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35413744

RESUMEN

The purpose of this study was to determine possible cut-off levels of basal DHEA-S percentile rank in the differential diagnosis of patients with Cushing's syndrome (CS) with ACTH levels in the gray zone and normal DHEA-S levels. In this retrospective study including 623 pathologically confirmed CS, the DHEA-S percentile rank was calculated in 389 patients with DHEA-S levels within reference interval. The patients were classified as group 1 (n=265 Cushing's disease; CD), group 2 (n=104 adrenal CS) and group 3 (n=20 ectopic ACTH syndrome).ROC-curve analyses were used to calculate the optimal cut-off level of DHEA-S percentile rank in the reference interval in the differential diagnosis of CS, and the effectiveness of this cut-off level in the identification of the accurate etiology of CS was assessed in patients who were in gray zone according to their ACTH levels. The DHEA-S percentile rank in the reference interval were significantly lower in group 2 compared to the other two groups (p<0.001), while group 1 and group 3 had similar levels. The optimal cut-off level of DHEA-S percentile rank in the reference interval providing differential diagnosis between group 1 and group 2 was calculated as 19.5th percentile (80.8% sensitivity, 81.5% specificity) and the level demonstrated the accurate etiology in 100% of CD and 76% of adrenal CS patients who were in the gray zone. This study showed that the cut-off value of DHEA-S level less than 20% of the reference interval could be used for differential diagnosis of CD and adrenal CS with high sensitivity and specificity, and it should be taken into the initial evaluation.


Asunto(s)
Síndrome de Cushing , Hormona Adrenocorticotrópica , Síndrome de Cushing/diagnóstico , Síndrome de Cushing/etiología , Sulfato de Deshidroepiandrosterona , Diagnóstico Diferencial , Humanos , Hidrocortisona , Estudios Retrospectivos
2.
Clin Endocrinol (Oxf) ; 94(6): 1043-1053, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33502018

RESUMEN

OBJECTIVES: LMNA variants have been previously associated with cardiac abnormalities independent of lipodystrophy. We aimed to assess cardiac impact of familial partial lipodystrophy (FPLD) to understand the role of laminopathy in cardiac manifestations. STUDY DESIGN: Retrospective cohort study. METHODS: Clinical data from 122 patients (age range: 13-77, 101 females) with FPLD were analysed. Mature human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) from a patient with an LMNA variant were studied as proof-of-concept for future studies. RESULTS: Subjects with LMNA variants had a higher prevalence of overall cardiac events than others. The likelihood of having an arrhythmia was significantly higher in patients with LMNA variants (OR: 3.77, 95% CI: 1.45-9.83). These patients were at higher risk for atrial fibrillation or flutter (OR: 5.78, 95% CI: 1.04-32.16). The time to the first arrhythmia was significantly shorter in the LMNA group, with a higher HR of 3.52 (95% CI: 1.34-9.27). Non-codon 482 LMNA variants were more likely to be associated with cardiac events (vs. 482 LMNA: OR: 4.74, 95% CI: 1.41-15.98 for arrhythmia; OR: 17.67, 95% CI: 2.45-127.68 for atrial fibrillation or flutter; OR: 5.71, 95% CI: 1.37-23.76 for conduction disease). LMNA mutant hiPSC-CMs showed a higher frequency of spontaneous activity and shorter action potential duration. Functional syncytia of hiPSC-CMs displayed several rhythm alterations such as early afterdepolarizations, spontaneous quiescence and spontaneous tachyarrhythmia, and significantly slower recovery in chronotropic changes induced by isoproterenol exposure. CONCLUSIONS: Our results highlight the need for vigilant cardiac monitoring in FPLD, especially in patients with LMNA variants who have an increased risk of developing cardiac arrhythmias. In addition, hiPSC-CMs can be studied to understand the basic mechanisms for the arrhythmias in patients with lipodystrophy to understand the impact of specific mutations.


Asunto(s)
Células Madre Pluripotentes Inducidas , Lipodistrofia Parcial Familiar , Lipodistrofia , Adolescente , Adulto , Anciano , Femenino , Humanos , Lamina Tipo A/genética , Lipodistrofia Parcial Familiar/genética , Persona de Mediana Edad , Mutación , Fenotipo , Estudios Retrospectivos , Adulto Joven
3.
J Biochem Mol Toxicol ; 34(10): e22547, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32589349

RESUMEN

Anaplastic cancer constitutes 1% of thyroid cancers, and it is one of the most aggressive cancers. Treatment options are external radiation therapy and/or chemotherapy. The success rate with these treatment modalities is not satisfactory. We aimed to evaluate the effects of metformin (MET) and pioglitazone (PIO) combination on apoptosis and AMP-activated protein kinase/mammalian target of rapamycin (mTOR) signaling pathway in human anaplastic thyroid cancer cells. In this study, we evaluated the effects of MET and PIO individually and the combination of the two drugs on the cellular lines SW1736 and C643 ATC. Genes contained in the mTOR signaling pathway were examined using human mTOR Signalization RT2 Profiler PCR Array. In C643 and SW1736 cell lines, IC50 doses of MET and PIO were found out as 17.69 mM, 11.64 mM, 27.12 µM, and 23.17 µM. Also, the combination of MET and PIO was determined as an additive according to isobologram analyses. We have found the downregulation of the expression levels of oncogenic genes: AKT3, CHUK, CDC42, EIF4E, HIF1A, IKBKB, ILK, MTOR, PIK3CA, PIK3CG, PLD1, PRKCA, and RICTOR genes, in the MET and PIO combination-treated cells. In addition, expression levels of tumor suppressor genes, DDIT4, DDIT4L, EIF4EBP1, EIF4EBP2, FKBP1A, FKBP8, GSK3B, MYO1C, PTEN, ULK1, and ULK2, were found to have increased significantly. The MET + PIO combination was first applied to thyroid cancer cells, and significant reductions in the level of oncogenic genes were detected. The decreases, particularly, in AKT3, DEPTOR, EIF4E, ILK, MTOR, PIK3C, and PRKCA expressions indicate that progression can be prevented in thyroid cancer cells and these genes could be selected as therapeutic targets.


Asunto(s)
Proteínas Quinasas Activadas por AMP/metabolismo , Apoptosis/efectos de los fármacos , Metformina/farmacología , Pioglitazona/farmacología , Transducción de Señal/efectos de los fármacos , Serina-Treonina Quinasas TOR/metabolismo , Carcinoma Anaplásico de Tiroides/metabolismo , Neoplasias de la Tiroides/metabolismo , Línea Celular Tumoral , Quimioterapia Combinada , Expresión Génica/efectos de los fármacos , Humanos , Metformina/administración & dosificación , Pioglitazona/administración & dosificación , Carcinoma Anaplásico de Tiroides/patología , Neoplasias de la Tiroides/patología
4.
Natl Med J India ; 33(5): 278-280, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-34213454

RESUMEN

The near total lack of subcutaneous fat in congenital generalized lipodystrophy (CGL) leads to the accumulation of fat in ectopic organs and severe insulin resistance, which are associated with serious metabolic abnormalities. Cosmetic aspects of the disease are likely to affect the quality of life (QoL) and physiological well-being in these individuals. Metreleptin, recombinant human leptin, replacement treatment has been shown to have benefits in treating the metabolic abnormalities of CGL. In a patient with CGL caused by a homozygous AGPAT2 pathogenic variant, we examined QoL and mood alterations (depression and anxiety) caused by this chronic disease. Metreleptin replacement treatment led to dramatic metabolic improvement in our patient. It was also was associated with improvements in QoL, depression and anxiety scores. We suggest that there is need for studies to document the benefit of metreleptin replacement treatment on QoL and physiological well-being in patients with CGL.


Asunto(s)
Lipodistrofia Generalizada Congénita , Lipodistrofia , Humanos , Leptina/análogos & derivados , Lipodistrofia Generalizada Congénita/tratamiento farmacológico , Lipodistrofia Generalizada Congénita/genética , Calidad de Vida
5.
Endocr J ; 66(12): 1093-1099, 2019 Dec 25.
Artículo en Inglés | MEDLINE | ID: mdl-31527320

RESUMEN

The purpose of this study is to evaluate the impact of insulin secretion-sensitivity index-2 (ISSI-2) in the identification of the role of pancreatic iron deposition on beta-cell function in thalassemia major. Tissue iron stores were measured with magnetic resonance imaging (MRI) in the liver (R2), pancreas (R2*), and heart (T2*). ISSI-2 was assessed as a novel oral glucose tolerance test-based measure of beta-cell function. Also, the Stumvoll index showing the insulin sensitivity and Stumvoll index estimating first and second phase insulin secretion were calculated. Fourteen of the 51 Thalassemia Major patients, aged 8-34 (mean 21.1 ± 7.2) years-old, had either an impaired glucose tolerance test (n = 9, 17.6%) or diabetes mellitus (n = 5, 9.8%)-referred to as the glucose dysregulation (GD) group. The median serum ferritin and the mean liver R2 and cardiac T2* values were not significantly different between the GD and normal glucose tolerance (NGT, n = 37) groups whereas pancreas R2* was significantly higher in the GD group compared to the NGT group (p = 0.004). Patients with GD showed significantly lower ISSI-2 index (p < 0.001) as well as the Stumvoll index and Stumvoll first and second phase indices compared to those with NGT (p < 0.001). All patients with GD displayed a pancreas R2* >50 Hz and ISSI-2 <2. In conclusion, Pancreas R2* MRI combined with ISSI-2 index may be valuable parameters to identify patients at the highest risk for developing glucose dysregulation.


Asunto(s)
Resistencia a la Insulina/fisiología , Secreción de Insulina/fisiología , Células Secretoras de Insulina/fisiología , Hierro/metabolismo , Páncreas/metabolismo , Talasemia beta/fisiopatología , Adolescente , Adulto , Niño , Diabetes Mellitus/diagnóstico , Diabetes Mellitus/fisiopatología , Prueba de Tolerancia a la Glucosa , Humanos , Hierro/análisis , Hígado/química , Páncreas/química , Factores de Riesgo , Adulto Joven
6.
Turk J Med Sci ; 49(3): 872-878, 2019 06 18.
Artículo en Inglés | MEDLINE | ID: mdl-31203594

RESUMEN

Background/aim: High triglyceride (TG) levels are associated with increases in atherosclerotic cardiovascular disease (CVD), hepatic steatosis, and pancreatitis. Acute pancreatitis is a condition with high mortality. Therapeutic plasma exchange (TPE) in the treatment of hypertriglyceridemic pancreatitis (HTGP) is a rapid and effective treatment modality. In this study, the results of TPE were evaluated and the frequency of lipoprotein lipase (LPL) mutation in these patients was determined. Materials and methods: TPE was performed in 31 patients with HTGP at the Adult Therapeutic Apheresis Center. Results: A TG level under 500 mg/dL was achieved by applying apheresis at a median of 2 times (IQR 2­2, min 1, max 6) in the 31 cases. LPL mutation was detected in 8 (25.8%) of the 31 hypertriglyceridemia cases. When TG levels before and after TPE were evaluated, the mean TG level before TPE was significantly higher (3132 ± 1472 mg/dL) than the mean TG level afterwards (948 ± 465 mg/dL, P < 0.001). This result represented a decrease of 69.7% TG after TPE. Conclusion: TPE is a safe, fast, and effective treatment modality in experienced centers.


Asunto(s)
Hipertrigliceridemia/terapia , Intercambio Plasmático , Adulto , Femenino , Humanos , Hipertrigliceridemia/sangre , Hipertrigliceridemia/epidemiología , Lípidos/sangre , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
7.
Clin Endocrinol (Oxf) ; 89(1): 65-75, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29722904

RESUMEN

OBJECTIVES: Lipodystrophy syndromes are a group of heterogeneous disorders characterized by adipose tissue loss. Proteinuria is a remarkable finding in previous reports. STUDY DESIGN: In this multicentre study, prospective follow-up data were collected from 103 subjects with non-HIV-associated lipodystrophy registered in the Turkish Lipodystrophy Study Group database to study renal complications in treatment naïve patients with lipodystrophy. METHODS: Main outcome measures included ascertainment of chronic kidney disease (CKD) by studying the level of proteinuria and the estimated glomerular filtration rate (eGFR). Kidney volume was measured. Percutaneous renal biopsies were performed in 9 patients. RESULTS: Seventeen of 37 patients with generalized and 29 of 66 patients with partial lipodystrophy had CKD characterized by proteinuria, of those 12 progressed to renal failure subsequently. The onset of renal complications was significantly earlier in patients with generalized lipodystrophy. Patients with CKD were older and more insulin resistant and had worse metabolic control. Increased kidney volume was associated with poor metabolic control and suppressed leptin levels. Renal biopsies revealed thickening of glomerular basal membranes, mesangial matrix abnormalities, podocyte injury, focal segmental sclerosis, ischaemic changes and tubular abnormalities at various levels. Lipid vacuoles were visualized in electron microscopy images. CONCLUSIONS: CKD is conspicuously frequent in patients with lipodystrophy which has an early onset. Renal involvement appears multifactorial. While poorly controlled diabetes caused by severe insulin resistance may drive the disease in some cases, inherent underlying genetic defects may also lead to cell autonomous mechanisms contributory to the pathogenesis of kidney disease.


Asunto(s)
Enfermedades Renales/etiología , Lipodistrofia/complicaciones , Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Tasa de Filtración Glomerular/fisiología , Humanos , Lactante , Resistencia a la Insulina/fisiología , Riñón/patología , Enfermedades Renales/fisiopatología , Lipodistrofia/fisiopatología , Lipodistrofia Parcial Familiar/complicaciones , Lipodistrofia Parcial Familiar/fisiopatología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Adulto Joven
8.
Endocr Res ; 43(4): 258-263, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-29733702

RESUMEN

PURPOSE: To describe an interesting subtype of familial partial lipodystrophy (FPLD). METHODS: The phenotype of this distinctive FPLD subtype was studied in three Turkish female siblings. RESULTS: Mutation testing was negative for the genes associated with lipodystrophy syndromes. In MRI studies, fat loss was prominent in the posterior aspects of the proximal lower limbs, whilst some fat was preserved in the anterior, medial and lateral aspects. Remarkably, fat tissue was preserved in the distal part of the limbs. Local fat accumulation was observed in the mons pubis area. Asymmetrical fat loss was also remarkable in the upper extremities. All three patients had severe insulin resistance associated with diabetes mellitus, acanthosis nigricans, hypertriglyceridemia and hepatic steatosis. Abnormal amounts of proteinuria were detected in all three subjects. Renal biopsy showed mild tubular atrophy, interstitial fibrosis, irregular thickening and wrinkling of glomerular basal membranes, small areas of segmental sclerosis and pedicel effacement. CONCLUSIONS: We reported a form of FPLD characterized by a striking pattern of highly selective partial fat loss and proteinuria.


Asunto(s)
Tejido Adiposo/diagnóstico por imagen , Adiposidad/fisiología , Lipodistrofia Parcial Familiar/diagnóstico , Proteinuria/diagnóstico , Adulto , Análisis Mutacional de ADN , Femenino , Humanos , Resistencia a la Insulina/fisiología , Lipodistrofia Parcial Familiar/genética , Persona de Mediana Edad , Mutación , Linaje , Fenotipo , Proteinuria/genética , Turquía
9.
Mediators Inflamm ; 2015: 792016, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26161005

RESUMEN

OBJECTIVES: Intestinal ischemia-reperfusion injury is associated with mucosal damage and has a high rate of mortality. Various beneficial effects of ozone have been shown. The aim of the present study was to show the effects of ozone in ischemia reperfusion model in intestine. MATERIAL AND METHOD: Twenty eight Wistar rats were randomized into four groups with seven rats in each group. Control group was administered serum physiologic (SF) intraperitoneally (ip) for five days. Ozone group was administered 1 mg/kg ozone ip for five days. Ischemia Reperfusion (IR) group underwent superior mesenteric artery occlusion for one hour and then reperfusion for two hours. Ozone + IR group was administered 1 mg/kg ozone ip for five days and at sixth day IR model was applied. Rats were anesthetized with ketamine∖xyzlazine and their intracardiac blood was drawn completely and they were sacrificed. Intestinal tissue samples were examined under light microscope. Levels of superoxide dismutase (SOD), catalase (CAT), glutathioneperoxidase (GSH-Px), malondyaldehide (MDA), and protein carbonyl (PCO) were analyzed in tissue samples. Total oxidant status (TOS), and total antioxidant capacity (TAC) were analyzed in blood samples. Data were evaluated statistically by Kruskal Wallis test. RESULTS: In the ozone administered group, degree of intestinal injury was not different from the control group. IR caused an increase in intestinal injury score. The intestinal epithelium maintained its integrity and decrease in intestinal injury score was detected in Ozone + IR group. SOD, GSH-Px, and CAT values were high in ozone group and low in IR. TOS parameter was highest in the IR group and the TAC parameter was highest in the ozone group and lowest in the IR group. CONCLUSION: In the present study, IR model caused an increase in intestinal injury.In the present study, ozone administration had an effect improving IR associated tissue injury. In the present study, ozone therapy prevented intestine from ischemia reperfusion injury. It is thought that the therapeutic effect of ozone is associated with increase in antioxidant enzymes and protection of cells from oxidation and inflammation.


Asunto(s)
Mucosa Intestinal/irrigación sanguínea , Ozono/uso terapéutico , Daño por Reperfusión/prevención & control , Animales , Antioxidantes/metabolismo , Mucosa Intestinal/patología , Masculino , Estrés Oxidativo , Ratas , Ratas Wistar
10.
Ulus Cerrahi Derg ; 31(4): 202-6, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26668527

RESUMEN

OBJECTIVE: Bariatric surgery with multidisciplinary management is a more effective method to treat morbid obesity and obesity-related comorbidities compared with nonsurgical treatments. Laparoscopic sleeve gastrectomy (LSG) was initially performed as the first stage of biliopancreatic diversion with duodenal switch in the super-obese population. In the past few years, however, LSG has been performed as a definitive procedure because of its promising early and midterm results. The aim of this study is to evaluate the efficacy of our initial LSG series of 73 patients on excess weight loss (EWL) and resolution of obesity-related comorbidities in short-term follow-up. MATERIAL AND METHODS: From March 2013 to May 2014, 78 morbid obese patients with an average body mass index (BMI) of 46.3 kg/m(2) underwent LSG. There is a 9-month follow-up period on average. Five patients were excluded from the study, because they could not be contacted. Comorbidities, preintervention BMI, glucose, HbA1c, and lipid profiles were recorded at 1, 6, and 12 months postintervention. RESULTS: After the surgery, the percent EWL was 58%. The mean serum glucose level, HbA1c level, LDL-cholesterol level, triglyceride level, insulin, and insulin resistance decreased significantly and the mean HDL-cholesterol level increased. CONCLUSION: For the resolution of comorbidities, LSG may be used as an effective bariatric and metabolic surgery.

11.
Hormones (Athens) ; 23(1): 81-88, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37981618

RESUMEN

PURPOSE: The OPG/RANKL (osteoprotegerin/receptor activator of nuclear factor kappa-B) system, which plays a crucial role in bone metabolism, is also associated with vascular calcification. Acromegaly is characterized by excessive secretion of growth hormone and insulin-like growth factor, and studies have demonstrated an elevated risk of cardiovascular disease in individuals with acromegaly. In this study, our objective was to investigate the relationship between OPG/RANKL and various cardiovascular risk scoring systems. METHODS: We recruited 44 consecutive acromegaly patients and 41 healthy controls with a similar age and gender distribution for this study. RESULTS: While RANKL levels were significantly higher in the acromegaly group compared to the controls, OPG levels were not found to be significantly different between the two groups. Furthermore, within the acromegaly group, RANKL levels were significantly higher in patients with active acromegaly compared to those with controlled acromegaly. Osteoprotegerin levels showed a positive correlation with the Framingham risk score (FRS) in the acromegaly group. Linear regression analysis revealed an association of OPG with FRS (adjusted R2 value of 21.7%). CONCLUSION: OPG and RANKL may serve as potential markers for assessment of cardiovascular calcification and prediction of the cardiovascular risk status in acromegalic patients.


Asunto(s)
Acromegalia , Enfermedades Cardiovasculares , Humanos , Osteoprotegerina , Receptor Activador del Factor Nuclear kappa-B , Factores de Riesgo , Factores de Riesgo de Enfermedad Cardiaca , Ligando RANK
12.
Endocrine ; 2024 Apr 08.
Artículo en Inglés | MEDLINE | ID: mdl-38587785

RESUMEN

BACKGROUND AND AIMS: Congenital adrenal hyperplasia (CAH) is a group of disorders that affect the production of steroids in the adrenal gland and are inherited in an autosomal recessive pattern. The clinical and biochemical manifestations of the disorder are diverse, ranging from varying degrees of anomalies of the external genitalia to life-threatening adrenal insufficiency. This multicenter study aimed to determine the demographics, biochemical, clinical, and genetic characteristics besides the current status of adult patients with CAH nationwide. METHODS: The medical records of 223 patients with all forms of CAH were evaluated in the study, which included 19 adult endocrinology clinics. A form inquiring about demographical, etiological, and genetic (where available) data of all forms of CAH patients was filled out and returned by the centers. RESULTS: Among 223 cases 181 (81.16%) patients had 21-hydroxylase deficiency (21OHD), 27 (12.10%) had 11-beta-hydroxylase deficiency (110HD), 13 (5.82%) had 17-hydroxylase deficiency (17OHD) and 2 (0.89%) had 3-beta-hydroxysteroid-dehydrogenase deficiency. 21OHD was the most prevalent CAH form in our national series. There were 102 (56.4%) classical and 79 (43.6%) non-classical 210HD cases in our cohort. The age of the patients was 24.9 ± 6.1 (minimum-maximum: 17-44) for classical CAH patients and 30.2 ± 11.2 (minimum-maximum: 17-67). More patients in the nonclassical CAH group were married and had children. Reconstructive genital surgery was performed in 54 (78.3%) of classical CAH females and 42 (77.8%) of them had no children. Thirty-two (50.8%) NCAH cases had homogenous and 31 (49.2%) had heterogeneous CYP21A2 gene mutations. V281L pathological variation was the most prevalent mutation, it was detected in 35 (55.6%) of 21OHD NCAH patients. CONCLUSION: Our findings are compatible with the current literature except for the higher frequency of 110HD and 17OHD, which may be attributed to unidentified genetic causes. A new classification for CAH cases rather than classical and non-classical may be helpful as the disease exhibits a large clinical and biochemical continuum. Affected cases should be informed of the possible complications they may face. The study concludes that a better understanding of the clinical characteristics of patients with CAH can improve the management of the disorder in daily practice.

13.
Arch Gynecol Obstet ; 287(2): 281-7, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22955292

RESUMEN

PURPOSE: To evaluate the effect of long-term low or high-dose nicotine exposure on bone mass via measuring bone mineral density (BMD) and oxidant-antioxidant status markers. METHODS: Thirty-five female Swiss Albino rats weighing 70 ± 10 g were divided as the control group (n = 12), low-dose nicotine group (n = 12) and high-dose nicotine group (n = 11). While the control group was given only normal drinking water, the low-dose nicotine group had 0.4 mg/kg per day and the high-dose nicotine group, 6.0 mg/kg per day of nicotine added to their water for the period of 1 year. BMD was determined with X-ray absorptiometry of lumbar vertebra, corpus femoris, proximal and distal femur. To evaluate oxidant-antioxidant status malondialdehyde (MDA) levels, superoxide dismutase (SOD) and catalase (CAT) activities were determined. RESULTS: When comparing the nicotine groups and controls, neither BMD nor oxidant-antioxidant status markers showed any statistically significant difference. In comparison to the controls, 12 months of high-dose oral nicotine exposure did not have a significant effect on BMD and low-dose nicotine exposure led to a statistically insignificant increase in BMD. CONCLUSIONS: Contrary to common belief, the results of this study show that nicotine is not responsible for the decrease in BMD leading to osteoporosis frequently seen in smokers. However, there is a need to explore the other harmful materials in tobacco which may be responsible for the alterations seen in BMD of smokers.


Asunto(s)
Densidad Ósea/efectos de los fármacos , Nicotina/farmacología , Agonistas Nicotínicos/farmacología , Estrés Oxidativo/efectos de los fármacos , Absorciometría de Fotón , Animales , Biomarcadores , Catalasa/sangre , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Femenino , Malondialdehído/sangre , Nicotina/administración & dosificación , Agonistas Nicotínicos/administración & dosificación , Distribución Aleatoria , Ratas , Superóxido Dismutasa/sangre
14.
Hormones (Athens) ; 22(1): 139-142, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36344736

RESUMEN

INTRODUCTION: Acromegaly is a disease with various comorbidities and hypogonadism is a common comorbidity in patients with acromegaly. Herein, we aim to present our experience with clomiphene citrate in a patient with acromegaly accompanied by hypogonadism, who declined surgery. CASE REPORT: A 40-year-old male patient with impaired fasting glucose, hyperlipidemia, and psychosis and who complained of increasing tongue growth, snoring, enlargement of the hands, spacing between the teeth, and loss of libido for the last 6 years was followed up. Acromegaly was diagnosed, with high levels of insulin-like growth factor-1 (IGF-1) and a pituitary neuroendocrine tumor measuring 11 mm; the patient had concomitant hypogonadism. Lanreotide was started as the initial primary medical treatment. Clomiphene citrate was added to the patient's treatment. The patient, whose IGF-1 level was high during follow-up, did not want to use the intramuscular testosterone esters for hypogonadism. In the third month of clomiphene citrate treatment, IGF-1 normalization was achieved and the patient's total testosterone level increased. DISCUSSION: Biochemical control is not always achieved with somatostatin receptor ligands and dopamine agonists in the treatment of acromegaly. Therefore, we support the use of clomiphene citrate (CC) as a cost-effective oral add-on treatment option in selected hypogonadal acromegaly cases.


Asunto(s)
Acromegalia , Hipogonadismo , Neoplasias Hipofisarias , Masculino , Humanos , Adulto , Acromegalia/tratamiento farmacológico , Factor I del Crecimiento Similar a la Insulina , Clomifeno/uso terapéutico , Hipogonadismo/tratamiento farmacológico , Testosterona , Neoplasias Hipofisarias/complicaciones , Neoplasias Hipofisarias/tratamiento farmacológico
15.
Hormones (Athens) ; 22(3): 413-423, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37458962

RESUMEN

PURPOSE: The aim of our study is to evaluate whether serum Klotho/FGF-23 and apelin-13 can be used as new biomarkers for detection of development of nephropathy. METHODS: In this cross-sectional study, 88 type 2 diabetes mellitus (T2DM) patients and 38 healthy controls were included. The mean duration of T2DM was 11.4 ± 9.7 years. T2DM individuals were categorized into two groups as group 1 with e-GFR < 60 mL/min/1.73 m2 and group 2 with e-GFR > 60 mL/min/1.73 m2. They were also divided into two groups according to their 24 h urine albumin levels, classifying them as follows: normoalbuminuria if less than 30 mg/day and albuminuria if more than 30 mg/day. RESULTS: Mean serum Klotho levels in the T2DM group were observed to be significantly higher than in the control group. Serum apelin-13 levels were observed to be significantly lower in the T2DM group compared to the control group (p < 0.001). In the diabetic group, apelin-13 levels were positively correlated with age, waist circumference, and albuminuria while they were negatively correlated with e-GFR. Apelin-13 levels were seen to be significantly higher in group 1 (p < 0.001). CONCLUSION: Apelin-13 levels were found to be significantly higher in individuals with diabetic nephropathy than in those without diabetic nephropathy. In the diabetic group, a significant relationship was detected between apelin-13 levels and albumin excretion. Based on these findings, we consider that serum Klotho and apelin-13 levels may have a protective effect on diabetic nephropathy and can additionally be used as a biomarker to predict diabetic nephropathy.


Asunto(s)
Diabetes Mellitus Tipo 2 , Nefropatías Diabéticas , Humanos , Nefropatías Diabéticas/diagnóstico , Glucuronidasa , Albuminuria/diagnóstico , Albuminuria/orina , Estudios Transversales , Albúminas , Apelina , Biomarcadores
16.
Hormones (Athens) ; 22(1): 61-69, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36241955

RESUMEN

PURPOSE: Acromegaly is associated with oxidative stress and inflammation parameters. Chitotriosidase (CHITO) is a marker of macrophage activation and plays a pivotal role in the activation of inflammatory and immunological responses. Our study aimed to determine CHITO,YKL-40, advanced glycation end product (AGE), and high-sensitivity C-reactive protein (hsCRP) levels to investigate malondialdehyde (MDA), catalase, superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) activities and to evaluate any association of these parameters with carotid intima media thickness (cIMT) in patients with controlled acromegaly. METHODS: Thirty controlled acromegaly patients and 41 age- and sex-matched control cases were studied. We obtained demographic data, hormonal and metabolic parameters, and cIMT. CHITO activity was measured with the fluorometric method of Chamoles et al. YKL-40 and hsCRP levels were measured using ELISA. AGEs were measured based on spectrofluorimetric detection. GSH-Px activity was determined by a colorimetric assay. MDA, SOD, and catalase activities were determined in hemolysis. RESULTS: Higher CHITO, AGE, and hsCRP concentrations were observed in patients with acromegaly compared to controls. SOD levels were non-significantly higher in the acromegaly group, while catalase activities were lower in patients with acromegaly. Correlation analyses of CHITO, AGEs, YKL-40, hsCRP, MDA, catalase, GSH-Px, and SOD with metabolic, anthropometric, and laboratory parameters did not demonstrate any significant correlation (p > 0.05). There was no significant difference between groups with regard to cIMT levels. CONCLUSION: This is the first study investigating CHITO and AGE levels in patients with acromegaly. Serum CHITO, AGE, and hsCRP levels in acromegalic patients were significantly increased. It may be important to evaluate CHITO, AGE, and hsCRP levels in acromegalic patients who are already under cardiometabolic surveillance due to risk of developing cardiovascular disease.


Asunto(s)
Acromegalia , Humanos , Acromegalia/complicaciones , Catalasa , Grosor Intima-Media Carotídeo , Proteína C-Reactiva , Proteína 1 Similar a Quitinasa-3 , Estudios de Casos y Controles , Antioxidantes , Estrés Oxidativo , Superóxido Dismutasa , Productos Finales de Glicación Avanzada , Glutatión Peroxidasa
18.
Clin Nurs Res ; 31(4): 579-587, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-34569310

RESUMEN

In this study was to determine knowledge of cardiovascular disease (CVD) risk factors and to explore related factors among adults with type 2 diabetes mellitus (DM) who have not been diagnosed with CVD. This descriptive study was conducted with 175 adults. Data were collected individual identification form and Cardiovascular Disease Risk Factors Knowledge Level (CARRF-KL) scale. A negative correlation was found between age and CARRF-KL score. A significant difference was found between educational status and CARRF-KL score. The individuals described their health status as good, managed their condition with diet and exercise, received information from nurses, adults with DM in their family and those with no DM complications had significantly higher scores in CARRF-KL. The knowledge of an individual with DM about CVD risk factors should be assessed, CVD risks should be identified at an early stage, and individuals at risk should be subjected to screening.


Asunto(s)
Enfermedades Cardiovasculares , Diabetes Mellitus Tipo 2 , Diabetes Mellitus , Adulto , Enfermedades Cardiovasculares/prevención & control , Diabetes Mellitus Tipo 2/complicaciones , Escolaridad , Humanos , Factores de Riesgo
19.
World J Clin Cases ; 10(31): 11226-11239, 2022 Nov 06.
Artículo en Inglés | MEDLINE | ID: mdl-36387809

RESUMEN

Obesity is becoming an inevitable pandemic all over the world. The World Obesity Federation predicts in the 2022 World Obesity Atlas that one billion people worldwide, including 1 in 5 women and 1 in 7 men, will be living with obesity by 2030. Moreover, the prevalence of diabetes is increasing worldwide, and diabetes is becoming more of a public health problem. Increased insulin resistance due to obesity and deficiency in insulin secretion are the two main causes of type 2 diabetes mellitus (T2DM). An exogenous chemical or mixture of chemicals that interferes with any aspect of hormone action was defined as endocrine-disrupting chemicals (EDCs). Bisphenol A (BPA), the first known EDC, was synthesized and was considered to be estrogenic. Global production of BPA has increased progressively from 5 to 8 million tons (MT) between 2010 and 2016. Furthermore, researchers estimated that the production should reach 10.2 MT by 2022. The human population is exposed to EDCs in daily life in such forms as pesticides/herbicides, industrial and household products, plastics, detergents, and personal care products. The term obesogen was used for chemicals that promote weight gain and obesity by increasing the number of adipocytes and fat storage in existing adipocytes, changing the energy balance, and finally regulating appetite and satiety. Besides the obesogenic effect, EDCs can cause T2DM through alteration in ß cell function and morphology and insulin resistance. In this review, we provide clinical and mechanistic evidence regarding EDCs as obesogen and diabetogen. However, those studies are not enough methodologically to indicate causality. In this respect, randomized clinical trials are needed to investigate the association between obesogen, diabetogen and the related metabolic clinical picture.

20.
Nutr Res ; 102: 59-70, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35405603

RESUMEN

Metabolic syndrome has become a major health hazard of the modern world. Studies investigating the effects of traditional fermented foods on metabolic syndrome are limited. We hypothesized that regular kefir consumption could improve the anthropometrical measurements, glycemic control, lipid profile, blood pressure, and inflammatory status in patients with metabolic syndrome. Sixty-two participants were randomly assigned to receive either 180 mL/d probiotic kefir or unfermented milk for 12 weeks. Dietary intake, anthropometrical measurements, biochemical status, and blood pressure were assessed at baseline and the end of weeks 4, 8, and 12. Serum apolipoprotein A1 concentration increased by 3.4% in the kefir group, whereas it decreased by 2.4% in the milk group in 12 weeks (P = .03). A subgroup analysis for participants with low-density lipoprotein cholesterol (LDL-C) levels >130 mg/dL showed that serum LDL-C and apolipoprotein B concentrations (7.6% and 5.4%, respectively) significantly decreased with kefir consumption compared with the baseline values at the 12th week (P < .05), but not compared with milk consumption (P > .05). Both milk and kefir consumption was associated with lower systolic and diastolic blood pressure compared with the baseline (P < .05). The 12-weeks of kefir administration also decreased serum tumor necrosis factor-α, interleukin 6, interleukin 10, interferon-gamma, and homocysteine concentrations significantly (P < .05). In conclusion, regular dairy consumption as part of a well-balanced diet can provide favorable effects in the management of metabolic syndrome, and probiotic kefir may deserve a special interest among dairy products. This trial was registered at clinicaltrials.gov (NCT03966846).


Asunto(s)
Kéfir , Síndrome Metabólico , Probióticos , Animales , Apolipoproteína A-I , LDL-Colesterol , Humanos , Leche
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