فهرست مطالب
International Journal of Endocrinology and Metabolism
Volume:15 Issue: 3, Jul 2017
- تاریخ انتشار: 1396/04/25
- تعداد عناوین: 10
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Page 1Context: There are contradictory results on the effect of hyperthyroidism on hemostasis. Inadequate population-based studies limited their clinical implications, mainly on the risk of venous thromboembolism (VTE). The present review focuses on hemostatic changes in overt and subclinical hyperthyroidism.MethodsA systematic literature search was conducted employing MEDLINE database. The following words were used for the search: Hyperthyroidism; thyrotoxicosis; Graves disease; goiter, nodular; hemostasis; blood coagulation factors; blood coagulation disorders; venous thromboembolism; bleeding; fibrinolysis. The articles that were related to hyperthyroidism and hemostasis are used in this manuscript.ResultsHyperthyroidism, either overt or subclinical, renders a hypercoagulable state, although there are several studies with contradictory findings in the literature. Hypercoagulability may be caused by an increase in the level of various coagulation factors such as factor (F) VIII, FX, FIX, von Willebrand F (vWF), and fibrinogen, while hypofibrinolysis by changes in coagulation parameters such as a decrease in plasmin and plasmin activator or an increase in α2-antiplasmin, plasminogen activator inhibitor-1 and thrombin activatable fibrinolysis inhibitorConclusionsAlthough many reports are in favor of a hypercoagulable state in overt hyperthyroidism but this finding at the biochemical level and its clinical implication, on the occurrence of VTE, has yet to be confirmed.Keywords: Hyperthyroidism, Hypothyroidism, Thyroiditis, Autoimmune, Hashimoto Disease, Myxedema, Venous Thromboembolism, Blood Coagulation Factors, Fibrinolysis, Thyroid Neoplasms
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Page 2Context: Kisspeptin (KISS1), a recently discovered neuropeptide that acts upstream of gonadotropin-releasing hormone (GnRH) neurons, is critical for maturation and function of the reproductive axis. This review aimed at providing comprehensive and up-to-date information on Kisspeptin and its role in female reproduction.
Evidence Acquisition: A literature review was performed using PubMed for all English language articles published between 1999 and 2016.ResultsThe kisspeptin system (KISS1/G protein-coupled receptor-54,GPR54) has recently been addressed as an essential gatekeeper of puberty onset and gonadotropin secretion. Compelling evidence has documented that hypothalamic Kisspeptin mediates steroid feedback and metabolic cues at different developmental stages throughout lifespan. Furthermore, in pre/postnatally androgenized animal models, which exhibit many of the characteristics of Polycystic Ovarian Syndrome (PCOS), the hypothalamic expression of KISS1 and GnRH is abnormal, which might lead to multiple tissue abnormalities observed in this disorder.ConclusionsKisspeptin, a principal activator of GnRH neurons and the target of endocrine and metabolic cues, is a prerequisite for the onset of puberty and maintenance of normal reproductive function, as abnormal KISS1/GPR54 system has been reported in both animal models and patients with certain forms of infertility, e.g. Idiopathic Hypogonadotropic hypogonadism (IHH) and PCOS. The information suggests that kisspeptin or its receptor represents a potential therapeutic target in the treatment of patients with fertility disorders.Keywords: Kisspeptin, GPR54, HPG Axis, Reproduction, Puberty -
Page 3Context: Neonatal mass screening program for congenital hypothyroidism provides the best tool for prevention of its devastating effects on mental development. Despite the overall success of the screening programs in detecting congenital hypothyroidism and eliminating its sequelae and new developments made in the program design, high recall rate and false positive results impose a great challenge worldwide. Lower recall rate and false positive results may properly organize project expenses by reducing the unnecessary repeated laboratory tests, increase physicians and parents assurance and cooperation, as well as reduce the psychological effects in families.
Evidence Acquisition: In this review, we assessed the recall rate in different programs and its risk factors worldwide.MethodsPublications reporting the results of the CH screening program from 1997 to 2016 focusing on the recall rate have been searched.ResultsRecall rates vary from 0.01% to 13.3% in different programs; this wide range may be due to different protocols of screening (use of T4 or TSH or both), different laboratory techniques, site of sample collection, recall cutoff, iodine status, human error, and even CH incidence as affected by social, cultural, and regional factors of the population.ConclusionsIt is suggested to implement suitable interventions to reduce the contributing factors by improving the quality of laboratory tests, selecting conservative cut off points, control iodine deficiency, use of iodine free antiseptic during delivery, and use of more specific markers or molecular tests. Applying an age dependent criteria for thyrotropin levels can be helpful in regions with a varied time of discharge after delivery or for preterm babies.Keywords: Congenital Hypothyroidism, Newborn Screening, Recall Rate -
Page 4BackgroundSex assignment in infancy for patients with disorder of sex development (DSD) is a challenging problem. Some of the patients with congenital adrenal hyperplasia (CAH) have DSD that may affect their gender identity.ObjectivesThe study aimed to assess gender identity in patients with CAH.MethodsIn this study, 52 patients with CAH, including 22 prepubertal children and 30 adolescents and adults, were assessed using two separate gender identity questionnaires for children and adults based on the criteria of diagnostic and statistical manual of mental disorders, 5th edition.ResultsIn the children group, compatibility was seen between gender identity and rearing gender. In the adult group, there were three cases of mismatching between gender identity and sex assignment composed of two females with poor control and one male with good control with 21-hydroxylase deficiency (21-OHD). Three girls with 11-hydroxylase deficiency (11-OHD) were reared as boy. Two of them with late diagnosis at 5 and 6 years of age had pseudoprecocious puberty. Parents and children did not accept to change the gender. One of them is 36 years old now, is depressed and unsatisfied with her gender, another girl is still child and has male sexual identity. One girl with 11-OHD and early diagnosis at birth with Prader 5 virilization but with good hormonal control was changed to female gender at 12 years of age when female sexual characteristics appeared; she is 34-years-old now, married, and with two children, and she is satisfied with her gender.ConclusionsIn patients with CAH, gender identity disorder is a rare finding. Hormonal control, social, familial, and religious beliefs have impacts on gender identity of these patients.Keywords: Gender Identity, Congenital Adrenal Hyperplasia
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Page 5BackgroundTo reduce morbidity and mortality, awareness regarding diabetes and its complications is necessary. This study aimed at assessing the level of knowledge, attitude, and practices (KAP) regarding complications of diabetes mellitus among patients with type 2 diabetes in Dhaka, Bangladesh.MethodsA cross-sectional study was carried out recruiting patients with diabetes from the outpatient department of BIRDEM hospital in Dhaka. Overall, 425 patients with diabetes were enrolled in this study. A pretested questionnaire was filled by the interviewer with face to face interview. Levels of KAP were determined by calculating the scores. Multivarable linear regression was used to determine significant predictors for knowledge, attitude, and practices.ResultsOn average, the level of knowledge, attitude, and practices were 9.2 (out of 14), 7.9 (out of 13), and 16.9 (out of 27), respectively. Age and gender were significant predictors of knowledge and attitude. Females had better level of knowledge and attitude compared to males (βs = 0.55 and 1.24, respectively). Patients with graduate degrees and above compared to illiterates reported significantly greater knowledge and practice (βs = 1.27 and 1.44, respectively), after adjustments for covariates. Educational program was the most important significant predictor of KAP. Higher duration of diabetes (β = 0.07) and positive marital status (β = 1.21) had influenced better practice.ConclusionsLack of knowledge, poor attitude, and inadequate practice were found in this surveyed communinty. Level of education and educational program on diabetes were the most significant contributing factors. The current study suggests the need of structured educational programs on diabetes and its complications on a regular basis to assist patients in living a productive life.Keywords: Health Knowledge, Attitudes, Practice, Diabetes Mellitus, Type 2, Diabetes Complications
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Page 6BackgroundAchieving weight loss (WL) in a short time regardless of its consequences has always been the focus of many obese and overweight people. In this study, anthropometric and metabolic effects of two diets for rapid and slow WL and their consequences were examined.MethodsForty-two obese and overweight individuals were randomly divided to 2 groups; rapid WL (weight loss of at least 5% in 5 weeks) and slow WL (weight loss of at least 5% in 15 weeks). To compare the effects of the rate of WL in 2 groups, the same amount of was achieved with different durations. Anthropometric indices, lipid, and glycemic profiles, and systolic and diastolic blood pressures were evaluated before and after the intervention.ResultsBoth protocols of rapid WL and slow WL caused reduction in waist circumference, hip circumference, total body water, body fat mass, lean body mass, and resting metabolic rate (RMR). Further reduction in waist circumference, hip circumference, fat mass, and percentage of body fat was observed in slow WL and decreased total body water, lean body mass, fat free mass, and RMR was observed in rapid WL. Improvement in lipid and glycemic profiles was observed in both groups. Reduction of low-density lipoprotein and fasting blood sugar, improvement of insulin resistance, and sensitivity were more significant in rapid WL in comparison to slow WL.ConclusionsWeight Loss regardless of its severity could improve anthropometric indicators, although body composition is more favorable following a slow WL. Both diets improved lipid and glycemic profiles. In this context, rapid WL was more effective. (IRCT2016010424699N2)Keywords: Body Composition, Diet, Insulin Resistance, Obesity, Weight Loss
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Page 7BackgroundTo investigate the associations of genetic polymorphism with high-density lipoprotein-cholesterol (HDL-C) levels in Iranian adolescents.MethodsThis multicentre study was conducted on 10 - 18 year-old students from 27 provinces in Iran. Logic regression approach was used to determine the main effects and interactions of polymorphisms related to HDL-C levels.ResultsThe rs708272 polymorphism was significantly related to HDL-C levels. Moreover, rs708272 increased HDL-C levels and had a protective effect on HDL-C. The interaction of rs2230808 and rs5880 polymorphisms as well as the interaction of rs320 and rs708272 polymorphisms were associated with lower HDL-C levels. Furthermore, the interaction of rs320 and rs1801177 polymorphisms was associated with lower HDL-C levels.ConclusionsWe found that not only single SNPs, but also interactions of several SNPs affect HDL-C levels. Given the high prevalence of low HDL-C in Middle Eastern populations, further genetic studies are required for detailed analysis.Keywords: Polymorphism, High, Density Lipoprotein, Pediatrics, Logic Regression
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Page 8Background And ObjectivesThyroid disorders during pregnancy are important health problems worldwide. The aim of this study was to assess the knowledge of general practitioners (GPs) about thyroid disorders during pregnancy.MethodsIn this cross sectional study, 120 GPs were randomly selected among participants of a continuous medical education (CME) program, entitled practical endocrinology. To assess the knowledge and educational requirements of GPs regarding thyroid disorders during pregnancy, a validated and localized multiple-choice questionnaire was used.ResultsA total of 100 GPs completed the questionnaire. The mean age of the participants was 37.0 years, and 41.4% were men. The mean knowledge score of GPs was 39.9%. On average, the rate of correct response to questions concerning the definition, pathophysiology, diagnosis, complications, and treatment of thyroid disorders was 39.0%, 39.3%, 48.8%, 34.3%, and 44.6%, respectively. There was a significant difference in knowledge among GPs, who had and had not passed the training course on thyroid disorders. In addition, GPs who had passed continuous medical education programs obtained higher knowledge scores regarding diagnosis and treatment (PConclusionsGPs attending pregnant women in Iran lack sufficient information on the pathophysiology, diagnosis, and management of thyroid disorders during pregnancy. Considering the key role of GPs in the public healthcare system, design of high-quality educational programs and development of specific educational packages about thyroid disorders and pregnancy are necessary.Keywords: Thyroid Disorders, Pregnancy, General Practitioners, Knowledge
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Page 9BackgroundPatient education (PE) is as important as medical and surgical interventions in the management of diabetic foot ulcer (DFU). Patient information leaflets (PILs) are globally accepted patient counseling aids.ObjectivesThis study aimed at developing PILs for DFU patients and investigating its validation.MethodsThe PILs were prepared based on different model leaflets available from various online resources, including Patient UK. The PILs readability was evaluated by Flesch/ Flesch-Kincaid readability (FRE/FK-GL) method before user-testing (n = 34 DFU patients) by quasi-experimental methods in patients with DFU. Additionally, user-opinion on legibility and content of the PIL was also determined. Baker Able Leaflet Design (BALD) method was employed to assess the layout and design characteristics of the PIL.ResultsThe best FRE score achieved was 73.9 and the FK-GL score was 6.1. The mean BALD assessment score for English and Kannada versions of PIL were 27 and 26, respectively. The ICC of the test-retest reliability of user-testing and user-opinion questionnaires in both English and Kannada ranged from 0.91 to 0.96. The overall user-testing knowledge-based mean score significantly improved from 43.4 to 69.7 (PConclusionsThe developed PILs met the criteria of fairly easy readability and good layout design. The user-opinion of the majority of patients reported the PIL content, legibility, and design as good. The Pictogram-based PILs (P-PILs) was found to be an effective PE tool in DFU patients.Keywords: Diabetic Foot Ulcer, Patient, Education, Patient Information Leaflets
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Page 10Purpose andMethodsHereditary vitamin D resistant rickets (HVDRR) is a rare disease that presents with signs and symptoms of rickets, alopecia, and growth retardation during the early years of life. The disease is caused by mutations in the vitamin D receptor (VDR) gene, which leads to unresponsiveness of the mutant receptor to 1-25(OH) 2 D3. The disease is transmitted as an autosomal recessive disorder and is found with equal frequency in males and females. The disease is rarely encountered and only about 100 cases are reported so far. The current paper reported the clinical and laboratory characteristics of 2 Iranian siblings with this disorder.
Results andConclusionThey presented with rickets, growth retardation, muscle weakness, hypocalcemia and alopecia totalis since early childhood, and were followed up for 27 years. Sequencing of the DNA extracted from the peripheral white blood cells showed a missense G to A mutation in exon number 4 (g.30994 G > A) that led to the methionine substitution for the naturally occurring valine at position 26 in the DNA binding domain (DBD) of the VDR.