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1.
BMC Endocr Disord ; 24(1): 5, 2024 Jan 02.
Artículo en Inglés | MEDLINE | ID: mdl-38166835

RESUMEN

OBJECTIVES: To conduct a systematic review and meta-analysis to evaluate the prevalence of thyroid disorders in COVID-19 patients. DATA SOURCES: Scopus, PubMed, ISI Web of Science, and Google Scholar databases were used in this review. We also consider the results of grey literature. STUDY SELECTIONS: Cohort, cross-sectional, and case-control studies were included. DATA EXTRACTION AND SYNTHESIS: The required data were extracted by the first author of the article and reviewed by the second author. The Pooled prevalence of outcomes of interest was applied using the meta-prop method with a pooled estimate after Freeman-Tukey Double Arcsine Transformation to stabilize the variances. OUTCOMES AND MEASURED: The different thyroid disorders were the main outcomes of this study. The diseases include non-thyroidal illness syndrome, thyrotoxicosis, hypothyroidism, isolated elevated free T4, and isolated low free T4. RESULTS: Eight articles were included in our meta-analysis(Total participants: 1654). The pooled prevalence of events hypothyroidism, isolated elevated FT4, isolated low FT4, NTIS, and thyrotoxicosis were estimated (Pooled P = 3%, 95% CI:2-5%, I2: 78%), (Pooled P = 2%, 95% CI: 0-4%, I2: 66%), (Pooled P = 1%, 95% CI: 0-1%, I2: 0%), (Pooled P = 26%, 95% CI: 10-42%, I2: 98%), and (Pooled P = 10%, 95% CI: 4-16%, I2: 89%), respectively. CONCLUSION: Thyroid dysfunction is common in COVID-19 patients, with a high prevalence of non-thyroidal illness syndrome (NTIS) and thyrotoxicosis. Our meta-analysis found a 26% prevalence of NTIS and a 10% prevalence of thyrotoxicosis. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42022312601.


Asunto(s)
COVID-19 , Síndromes del Eutiroideo Enfermo , Hipotiroidismo , Enfermedades de la Tiroides , Tirotoxicosis , Humanos , COVID-19/epidemiología , Prevalencia , Estudios Transversales , Enfermedades de la Tiroides/epidemiología
2.
Arch Gynecol Obstet ; 309(3): 975-985, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-36814028

RESUMEN

PURPOSE: Despite the beneficial effects of levothyroxine (LT4) therapy on pregnancy outcomes of women with subclinical hypothyroidism (SCH), its impact on the developmental status of offspring remains unclear. We aimed to assess the effects of LT4 therapy on the neurodevelopment of infants of SCH women in the first 3 years of life. METHODS: A follow-up study was conducted on children born to SCH pregnant women who had participated in a single-blind randomized clinical trial (Tehran Thyroid and Pregnancy Study). In this follow-up study, 357 children of SCH mothers were randomly assigned to SCH + LT4 (treated with LT4 after the first prenatal visit and throughout pregnancy) and SCH-LT4 groups. Children born of euthyroid TPOAb-women served as the control group (n = 737). The neurodevelopment status of children was assessed in five domains (communication, gross motor, fine motor, problem-solving, and social-personal domains) using the Ages and Stages Questionnaires (ASQ) at the age of 3 years. RESULTS: Pairwise comparisons of ASQ domains between euthyroid, SCH + LT4, and SCH-LT4 groups show no statistically significant difference between groups in the total score [median 25-75 total score: 265 (240-280); 270 (245-285); and 265 (245-285); P-value = 0.2, respectively]. The reanalyzing data using the TSH cutoff value of 4.0 mIU/L indicated no significant difference between groups in the score of ASQ in each domain or total score with TSH levels < 4.0 mIU/L, however, a statistically significant difference in the median score of the gross motor was observed between those SCH + LT4 with baseline TSH values ≥ 4.0 mIU/L and SCH-LT4 [60 (55-60) vs. 57.5 (50-60); P = 0.01]. CONCLUSIONS: Our study does not support the beneficiary effect of LT4 therapy for SCH pregnant women in terms of the neurological development of their offspring in the first three years of life.


Asunto(s)
Hipotiroidismo , Complicaciones del Embarazo , Niño , Femenino , Embarazo , Humanos , Preescolar , Tiroxina/uso terapéutico , Mujeres Embarazadas , Tirotropina/uso terapéutico , Estudios de Seguimiento , Método Simple Ciego , Complicaciones del Embarazo/tratamiento farmacológico , Irán , Hipotiroidismo/complicaciones , Hipotiroidismo/tratamiento farmacológico , Resultado del Embarazo
3.
Arch Gynecol Obstet ; 305(2): 495-504, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34333703

RESUMEN

PURPOSE: To evaluate the total, and direct effects of vitamin D, measured by circulating 25-hydroxyvitamin D [25(OH)D] levels, on GWG after adjustment for confounding variables, and then assess the indirect effects by demonstrating the role of gestational age at birth as a mediator in this association. METHODS: Data collected in "Khuzestan Vitamin D Deficiency Screening Program in Pregnancy" were used for the present study; it included the data of 900 pregnant women referred to the health centers of Shushtar (Khuzestan Province, Iran), whose vitamin D status during the third trimester of pregnancy was available. A mediation analysis was applied to detect the causal relationship between serum level of 25(OH)D, covariates (maternal age, parity, education level, and baseline maternal weight), mediator (gestational age), and outcome (GWG). RESULTS: Of 900 pregnant women referred to the health centers, a total of 726 eligible participants were analyzed for the study. The adjusted total effect of vitamin D on GWG was estimated 0.07 (95% CI 0.06, 0.09; P = 0.000). This study also revealed adjusted direct effect of vitamin D on GWG was statistically significant 0.02 (95% CI: 0.003, 0.04; P = 0.021). In addition, the adjusted indirect effect of this micronutrient on GWG by considering gestational age as a mediator was found to be significant [0.05 (95% CI 0.04, 0.06; P = 0.000)]. This study revealed an increase in the trend of weight gain during pregnancy trimesters for women with different levels of 25(OH)D; however, women with severe vitamin D deficiency had the lowest speed as compared to moderate and normal levels. CONCLUSION: This study shows that maternal vitamin D status directly affects the gestational weight gain independent of gestational age. Therefore, the detection and treatment of women with vitamin D inadequacy can directly improve the trend of their weight gain in addition to its indirect effect on reducing the risk of preterm delivery.


Asunto(s)
Ganancia de Peso Gestacional , Índice de Masa Corporal , Femenino , Humanos , Recién Nacido , Análisis de Mediación , Paridad , Embarazo , Primer Trimestre del Embarazo , Vitamina D
4.
BMC Endocr Disord ; 21(1): 108, 2021 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-34034716

RESUMEN

BACKGROUND: Thyroid autoimmunity(TAI) is the most prevalent autoimmune condition in women of fertile age. There are increasing data regarding the association of thyroid dysfunction and thyroid autoimmunity with adverse pregnancy outcomes but there is no consensus regarding infertility and TPOAb positivity; thus we aimed to evaluate the association between thyroid TPOAb positivity and infertility in females and males in a population-based study (TTS). METHODS: Cross-sectional study of 3197 female and male participants in Tehran Thyroid Study (TTS) at the framework of the Tehran Lipid and Glucose Study (TLGS). Data included biochemical measurements and a self-administered questionnaire. RESULTS: A total of 12,823 cases in phase 4, 3719 cases (2108 female and 1611 male) were analyzed. The mean TSH of the infertile female and male was 2.52 ± 2.68 µIU/ml and 3.24 ± 10.26 µIU/ml respectively. The TPO median(IQR) of women with and without a history of infertility were 6.05 (3.30-13.96)and 6.04 (3.17-11.15);(P = 0.613), they were 5.08 (3.20-125.68) and 5.31 (3.93-125.68);(P = 0.490) in male participants, respectively. Results of crude and adjusted logistic regression analysis of the development of infertility by thyroid function and TPOAb, except for fT4 in male subjects, depicted no association between infertility and other variables in both crude and adjusted models. CONCLUSION: Based on the result, thyroid autoimmunity was not associated with infertility in both females and males.


Asunto(s)
Autoanticuerpos/inmunología , Autoantígenos/inmunología , Biomarcadores/sangre , Hipotiroidismo/fisiopatología , Infertilidad/epidemiología , Yoduro Peroxidasa/inmunología , Proteínas de Unión a Hierro/inmunología , Adulto , Autoanticuerpos/sangre , Estudios Transversales , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Infertilidad/sangre , Infertilidad/inmunología , Irán/epidemiología , Masculino , Pronóstico
5.
BMC Womens Health ; 21(1): 79, 2021 02 23.
Artículo en Inglés | MEDLINE | ID: mdl-33622308

RESUMEN

BACKGROUND: Premature ovarian insufficiency (POI) considered as a concerning health issue for women of reproductive age. In this study we aim to estimate the prevalence of POI and assessing the influential factors. METHODS: Data was obtained from Tehran lipid and glucose study (TLGS). All eligible post-menarcheal female participants of the TLGS, ages 20-65, were recruited (n = 6521). Participants were followed for the event of menopause, and age at menopause was recorded. Kaplan Meier analysis was applied to estimate mean and median for age at menopause. Weibull accelerated failure time survival regression model (AFT), was applied to assess influential determinants of POI. Conditional probability approach was used to provide estimation for prevalence of POI. RESULTS: In this population-based study, the prevalence of POI (menopause age < 40 years) and early menopause (menopause age < 45 years) were estimated 3.5% and 24.6%, respectively. AFT model showed that in comparison to normal weight women, time to menopause was decreased by - 0.09 year (95% CI - 0.27, - 0.01, p = 0.023) and - 0.03 year (95% CI - 0.05, - 0.02, p = 0.000) in underweight and overweight women, respectively. Moreover, time to natural menopause was increased by 0.12 year (95% CI 0.07 to 0.17, p = 0.000) in women used oral contraceptives for > 6 months. CONCLUSION: About one quartile of Iranian women experienced menopause at an age less than 45, especially the non-normal weight ones; this high prevalence is a critical public health concerns that needs to be addressed by health policy makers.


Asunto(s)
Glucosa , Menopausia Prematura , Adulto , Anciano , Femenino , Humanos , Irán/epidemiología , Lípidos , Persona de Mediana Edad , Prevalencia , Adulto Joven
6.
Gynecol Endocrinol ; 37(5): 392-405, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33355023

RESUMEN

OBJECTIVE: The aim of this meta-analysis was to evaluate the prevalence of acne among women with PCOS worldwide, and in subgroups of patients with different age, geographical-region, and PCOS definition-criteria, compared to healthy non-PCOS counterparts. METHODS: A comprehensive literature search was performed in PubMed (including Medline), Web of Science, and Scopus databases for retrieving articles in English investigating the prevalence of PCOS. 'Meta-prop' method was applied to estimate pooled prevalence of acne in both groups. Meta-regression was conducted to find the association between acne in women with and without PCOS. RESULTS: We used 60 studies, included data of 240,213 women with PCOS and 1,902,022 healthy-controls for the meta-analysis. The overall pooled prevalence of acne among women with and without PCOS, was 43% (95% CI: 41-45%) and 21% (95% CI: 19-22%), respectively, which was 1.6-fold significantly higher than among healthy-controls. The pooled prevalence of acne in adults, and in adolescents PCOS patients were 42 and 59%, respectively, which were significantly higher than non-PCOS counterparts. The pooled estimated prevalence of acne in adult PCOS women was 76% using the NIH definition and 36% by Rotterdam-criteria; both were significantly higher than non-PCOS counterparts, respectively. In subgroups of adults, who used Rotterdam-definition, the highest prevalence of acne in PCOS patients was reported in East Asia and was 3.5-fold higher than non-PCOS counterparts. CONCLUSIONS: Despite the presence of heterogeneity and publication bias among available literature, it may be concluded that acne is one of the common dermatological manifestations in PCOS. In addition, results highlight geographical differences among PCOS patients.


Asunto(s)
Acné Vulgar/epidemiología , Acné Vulgar/etiología , Síndrome del Ovario Poliquístico/complicaciones , Femenino , Humanos , Prevalencia
7.
Hum Reprod ; 35(1): 175-186, 2020 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-31916574

RESUMEN

STUDY QUESTION: Do oral contraceptives (OCs) containing progestins with low androgenic or antiandrogenic activities have different effects to those containing levonorgestrel (LNG) on clinical, androgenic and metabolic manifestations of polycystic ovarian syndrome (PCOS)? SUMMARY ANSWER: The three OCs tested had similar effects on clinical findings of hyperandrogenism (HA), whereas products containing LNG were less effective on androgenic profiles and had detrimental effects on lipid profiles. WHAT IS KNOWN ALREADY: Despite data available on the effects of OCs, the superiority of products with low androgenic or antiandrogenic progesterone components in comparison with older products used in women with PCOS has not been clarified. STUDY DESIGN, SIZE, DURATION: This study is a crossover randomized controlled six-arm trial, with all six arms including two 6-month treatment periods, one period with OCs containing LNG, and the other with one of three OCs containing desogestrel (DSG), cyproterone acetate (CPA) or drospirenone (DRSP). The trial was conducted between February 2016 and January 2018 and enrolled 200 patients with PCOS. PARTICIPANTS/MATERIALS, SETTING, METHODS: Two hundred women with PCOS (ages 18-45 years) were recruited at the endocrine outpatient clinic of the Research Institute for Endocrine Sciences (RIES) of the Shahid Beheshti University of Medical Sciences, Tehran, Iran. A blocking or stratification random allocation (block size = 6) using a computer-based random number generator was prepared to assign participants to treatment groups. Both the clinical examiner and data analyst were blinded to participants during the trial. Outcomes of interest, including anthropometric and clinical manifestations and hormonal, and biochemical parameters were assessed at baseline, after 3 and 6 months of each treatment and after the washout period. MAIN RESULTS AND THE ROLE OF CHANCE: This study detected a higher decrease in free-androgen index (FAI) levels after 3 months of treatment with OCs containing DSG (95% CI: -2.3, -1.0), CPA (95% CI: -2.4, -1.1) and DRSP (95% CI: -2.6, -1.4), compared with products containing LNG (P < 0.001). Use of OCs containing DSG (95% CI: -3.6, -1.5), CPA (95% CI: -3.1, -0.8) and DRSP (95% CI: -3.4, -1.1) for 6 months was associated with more decrease in FAI, compared with products containing LNG (P < 0.001). The study showed that use of OCs containing DSG, CPA and DRSP for 3-6 months was associated with a higher increase of sex hormone-binding globulin (SHBG), compared with products containing LNG (P < 0.001). We also observed more decrease in dehydroepiandrosterone sulfate levels after use of OCs containing DSG (P = 0.003), CPA (P = 0.012) and DRSP (P < 0.001) for 6 months, compared with products containing LNG. Our results showed that the use of OCs containing DRSP for 6 months was associated with more improvement in acne, compared with products containing LNG (P = 0.007). Women treated with OCs containing CPA, and DRSP for 3 months had higher TG and HDL levels and lower LDL levels, compared with those treated with products containing LNG (P < 0.05). After 6 months of treatment, patients treated with OCs containing DRSP had a sharper decline in LDL levels and more increase in HDL levels, compared to those treated with products containing LNG (P = 0.001). LIMITATIONS, REASONS FOR CAUTION: Considering this trial was conducted in women diagnosed with Androgen Excess Society criteria, the results may not be generalizable for mild phenotypes diagnosed using Rotterdam criteria. Other limitations of the study include the high dropout rate, the lack of a gold standard androgen assay and the multiple end points. WIDER IMPLICATIONS OF THE FINDINGS: Our results support the views of clinicians, who suggest an OC with a low androgenic or antiandrogenic progestin, if available, to treat PCOS. STUDY FUNDING/COMPETING INTEREST(S): This study was supported by the RIES, Shahid Beheshti University of Medical Sciences, Tehran, Iran. There are no conflicts of interest. TRIAL REGISTRATION NUMBER: IRCT201702071281N2. TRIAL REGISTRATION DATE: 21 February 2017. DATE OF FIRST PATIENT'S ENROLMENT: 21 March 2017.


Asunto(s)
Anticonceptivos Orales Combinados/uso terapéutico , Levonorgestrel/uso terapéutico , Síndrome del Ovario Poliquístico , Adolescente , Adulto , Anticonceptivos Orales , Femenino , Humanos , Irán , Persona de Mediana Edad , Síndrome del Ovario Poliquístico/tratamiento farmacológico , Globulina de Unión a Hormona Sexual , Adulto Joven
8.
Reprod Biol Endocrinol ; 18(1): 23, 2020 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-32183820

RESUMEN

BACKGROUND: A limited number of publications have assessed the prevalence of hypertension (HTN) in polycystic ovary syndrome (PCOS) patients with inconclusive results. Since in general populations the occurrence of hypertension is related to age per se, we investigated the prevalence (P) / relative risk (RR) of HTN in pooled patients with PCOS, vs control population among reproductive age women with PCOS, compared to menopause/aging patients. METHODS: PubMed, Scopus, ScienceDirect, web of science, and Google scholar were systematically searched for retrieving observational studies published from inception to April 2019 investigating the HTN in patients with PCOS. The primary outcome of interest was pooled P and RR of HTN in reproductive and menopausal/aging women with PCOS compared to control population. RESULTS: The pooled prevalence of HTN in reproductive and menopausal/aging women with PCOS was higher than in the control population [(Pooled P: 0.15, 95% CI: 0.12-0.18 vs. Pooled P: 0.09, 95% CI: 0.08-0.10) and (Pooled P: 0.49, 95% CI: 0.28-0.70 vs. Pooled P: 0.40, 95% CI: 0.22-0.57), respectively]. Compared to the control population, pooled relative risk (RR) of HTN patients was increased only in reproductive age PCOS (1.70-fold, 95% CI: 1.43-2.07) but not in menopausal/aging patients who had PCOS during their reproductive years. The same results were obtained for subgroups of population-based studies. Meta-regression analysis of population-based studies showed that the RR of HTN in reproductive age PCOS patients was 1.76-fold than menopausal/aging PCOS patients (P = 0.262). CONCLUSION: This meta-analysis confirms a greater risk of HTN in PCOS patients but demonstrates that this risk is increased only in reproductive age women with PCOS, indicating that after menopause, having a history of PCOS may not be as an important predisposing factor for developing HTN.


Asunto(s)
Hipertensión/epidemiología , Síndrome del Ovario Poliquístico/epidemiología , Adulto , Comorbilidad , Femenino , Humanos , Persona de Mediana Edad , Prevalencia , Medición de Riesgo/métodos , Medición de Riesgo/estadística & datos numéricos , Factores de Riesgo
9.
BMC Med Res Methodol ; 20(1): 14, 2020 01 23.
Artículo en Inglés | MEDLINE | ID: mdl-31973739

RESUMEN

BACKGROUND: Antidepressants are prescribed widely to manage low back pain. There are a number of systematic reviews and meta-analyses which have investigated the efficacy of the treatments, while the methodological quality of them has not been assessed yet. This study aims to evaluate the methodological quality of the systematic reviews and meta-analyses investigating the effect of antidepressants on low back pain. METHODS: A systematic search was conducted in PubMed, EMBASE, Medline, and Cochrane Library databases up to November 2018. The 16-item Assessment of Multiple Systematic Reviews (AMSTAR2) scale was used to assess the methodological quality of the studies. Systematic reviews and meta-analyses of the Antidepressants treatment effects on low back pain published in English language were included. There was no limitation on the type of Antidepressants drugs, clinical setting, and study population, while non-systematical reviews and qualitative and narrative reviews were excluded. RESULTS: A total of 25 systematic reviews and meta-analyses were evaluated; the studies were reported between 1992 and 2017. Obtained results from AMSTAR2 showed that 11 (44%), 9 (36%) and 5 (20%) of the included studies had high, moderate and low qualities, respectively. 13(52%) of studies assessed risk of bias and 2(20%) of meta analyses considered publication bias. Also, 16 (64%) of the included reviews provided a satisfactory explanation for any heterogeneity observed in the results. CONCLUSIONS: Although the trend of publishing high quality papers in ADs effect on LBP increased recently, performing more high-quality SRs and MAs in this field with precise subgroups of the type of pains, the class of drugs and their dosages may give clear and more reliable evidence to help clinicians and policymakers.


Asunto(s)
Antidepresivos/uso terapéutico , Dolor de la Región Lumbar/tratamiento farmacológico , Metaanálisis como Asunto , Revisiones Sistemáticas como Asunto , Investigación Biomédica , Humanos , Control de Calidad , Calidad de la Atención de Salud
10.
Aging Male ; 23(4): 243-250, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-29703118

RESUMEN

Introduction: To explore the predictive value of testosterone added to the Framingham Risk Score (FRS) for cardiovascular disease (CVD).Methods: Among 816 men, 30-70 years/old, without prevalent CVD, from a community-based cohort (Tehran Lipid and Glucose Study), we assessed the predictive value of testosterone with incident CVD, using three multivariate Cox proportional-hazards models. Model I: FRS variables; model II: Model I plus total testosterone; model III: Model II plus Systolic blood pressure (SBP) * total testosterone (the best fit interaction-term between testosterone and FRS variables). Discriminations and goodness-of-fit were assessed by the C-statistic and the approach of Grønnesby, respectively. p Value <.05 was significant.Results: During 12 years of follow-up, 121 CVD events occurred. In all models, age, treated SBP, smoking, and diabetes were associated with increased CVD (p values <.05). Neither testosterone (models II and III), nor SBP * testosterone (model III) were associated with CVD (p values >.05). The C-statistics for models I, II, and III were 0.819, 0.820, and 0.821, respectively, indicating no significant improvement in the discrimination power. The models' goodness-of-fit did not improve compared with the FRS.Conclusion: Testosterone could not add to the predictive value of FRS for CVD in men, either directly, or through interactions with FRS variables.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Factores de Riesgo de Enfermedad Cardiaca , Testosterona/sangre , Adulto , Estudios de Seguimiento , Humanos , Irán/epidemiología , Masculino , Persona de Mediana Edad , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Curva ROC
11.
Gynecol Endocrinol ; 36(1): 12-23, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31385729

RESUMEN

This study aimed to evaluate the prevalence (P)/hazard ratio (HR) of cardiovascular (CV) events among reproductive age and menopausal age women with polycystic ovary syndrome (PCOS) in comparison with healthy controls. PubMed, Scopus, ScienceDirect, Web of science, and Google scholar were searched for retrieving observational studies published up to April 2018 investigating CV events in patients with PCOS. The primary outcomes were a composite outcome of CV events [including coronary arterial disease (CAD), cardiovascular disease (CVD), myocardial infarction (MI), angina, heart failure, and ischemic heart disease] and mortality due to CV events; secondary outcomes were specific CVD events, including cerebrovascular disease, CAD, CVD, MI, angina, heart failure, ischemic heart disease, and stroke. In this meta-analysis, both fixed and random effect models were used. Potential sources of heterogeneity were explored by meta-regression and subgroup analyses. Sixteen studies including 12 population-based were analyzed for the meta-analysis. Results showed that the pooled HRs of CV events in PCOS patients of reproductive age and in menopausal/aging women were higher than healthy controls (pooled HR: 1.38, 95% CI: 1.12-1.71) and (pooled HR: 1.53, 95% CI: 1.15, 2.04), respectively. Compared to healthy controls, analysis of population-based studies revealed that the HR of CV events increased only in reproductive age PCOS patients (1.43-fold, 95% CI: 1.27, 1.61), whereas the difference was not statistically significant when comparing menopausal/aging PCOS patients to healthy controls (1.03-fold, 95% CI: 0.41, 2.59). Sufficient data were not available for comparing the HRs of mortality due to CV events between the two PCOS age groups. Mainly based on population-based study, we found a greater risk of CV events in reproductive aged but not in menopausal/aging PCOS women, suggesting that having a history of PCOS during reproductive ages may not be an important risk factor for developing events in later life. This is a preliminary assumption and needs to be reevaluated by further comprehensive cohort studies of longer duration, initiated in the reproductive period, considering all known CVD risk factors.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Síndrome del Ovario Poliquístico/epidemiología , Adulto , Anciano , Angina de Pecho/epidemiología , Estudios de Casos y Controles , Trastornos Cerebrovasculares/epidemiología , Enfermedad de la Arteria Coronaria/epidemiología , Femenino , Insuficiencia Cardíaca/epidemiología , Humanos , Persona de Mediana Edad , Infarto del Miocardio/epidemiología , Isquemia Miocárdica/epidemiología , Prevalencia , Modelos de Riesgos Proporcionales , Accidente Cerebrovascular/epidemiología
12.
Med J Islam Repub Iran ; 34: 78, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33306050

RESUMEN

Background: The Bayesian methods have received more attention in medical research. It is considered as a natural paradigm for dealing with applied problems in the sciences and also an alternative to the traditional frequentist approach. However, its concept is somewhat difficult to grasp by nonexperts. This study aimed to explain the foundational ideas of the Bayesian methods through an intuitive example in medical science and to illustrate some simple examples of Bayesian data analysis and the interpretation of results delivered by Bayesian analyses. In this study, data sparsity, as a problem which could be solved by this approach, was presented through an applied example. Moreover, a common sense description of Bayesian inference was offered and some illuminating examples were provided for medical investigators and nonexperts. Methods: Data augmentation prior, MCMC, and Bayes factor were introduced. Data from the Khuzestan study, a 2-phase cohort study, were applied for illustration. Also, the effect of vitamin D intervention on pregnancy outcomes was studied. Results: Unbiased estimate was obtained by the introduced methods. Conclusion: Bayesian and data augmentation as the advanced methods provide sufficient results and deal with most data problems such as sparsity.

13.
Clin Endocrinol (Oxf) ; 90(1): 129-137, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-30229992

RESUMEN

BACKGROUND AND OBJECTIVE: While has been well demonstrated that clinical characteristics of polycystic ovary syndrome (PCOS) are associated with an impaired quality of life (QoL) in patients, it is unclear that whether the biochemical aspects of PCOS can influence their QoL. We aimed to investigate the relationship between clinical and biochemical characteristics, and various domains of QoL in patients with PCOS. DESIGN: A cross-sectional study. PATIENTS AND MEASUREMENTS: We assessed the association between clinical and biochemical characteristics and QoL domains (psychosocial-emotional, fertility, sexual function, and obesity-menstrual) in a total of 211 women with PCOS using a specific health-related quality-of-life questionnaire for PCOS patients. RESULTS: Our findings showed positive significant association of QoL with age, and its negative significant associations with BMI, hirsutism and infertility (P < 0.05). We also found a negative association between FAI and total QoL (r = -0.14; P = 0.042) and domains of hirsutism (r = -0.14; P = 0.045) and obesity-menstrual (r = -0.23; P = 0.001). DHEAS was positively associated with the sexual function aspect of QoL (r = 0.20; P = 0.043). There were no significant associations between QoL and other hormonal parameters including LH to FSH ratio and total testosterone (tT). Significant associations were found between triglycerides (TG), total cholesterol (TC), LDL and HDL cholesterol, and domain of obesity-menstrual of QoL. HOMA-IR was significantly related to all QoL domains except self-image and hirsutism. CONCLUSION: Although biochemical markers can influence QoL in patients with PCOS, clinical manifestations of this syndrome such as obesity, infertility and hirsutism seem to play roles in worsening QoL, in particular for psychosocial domains. Hence, clinicians should regularly assess the clinical and psychosocial dimensions of PCOS as well as biochemical aspects.


Asunto(s)
Síndrome del Ovario Poliquístico/psicología , Calidad de Vida , Adolescente , Adulto , Estudios Transversales , Femenino , Hirsutismo/psicología , Humanos , Infertilidad/psicología , Persona de Mediana Edad , Obesidad/psicología , Encuestas y Cuestionarios , Adulto Joven
14.
Cytokine ; 120: 191, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31100683

RESUMEN

The aim of this study was to mention some methodological issues in a study which investigate the effect of Granulocyte colony-stimulating factor on developing of aortitis.


Asunto(s)
Aortitis , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos , Factor Estimulante de Colonias de Granulocitos , Humanos , Japón
15.
Horm Metab Res ; 51(1): 22-34, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30650457

RESUMEN

While several studies have documented an increased risk of metabolic disorders in patients with polycystic ovary syndrome (PCOS), associations between androgenic and metabolic parameters in these patients are unclear. We aimed to investigate the relationships between biochemical markers of hyperandrogenism (HA) and metabolic parameters in women with PCOS. In this systematic review and meta-analysis, a literature search was performed in the PubMed, Scopus, Google Scholar, ScienceDirect, and Web of Science from 2000 to 2018 for assessing androgenic and metabolic parameters in PCOS patients. To assess the relationships between androgenic and metabolic parameters, meta-regression analysis was used. A total number of 33 studies involving 9905 patients with PCOS were included in this analysis. The associations of total testosterone (tT) with metabolic parameters were not significant; after adjustment for age and BMI, we detected associations of this androgen with low-density lipoproteins cholesterol (LDL-C) (ß=0.006; 95% CI: 0.002, 0.01), high-density lipoproteins cholesterol (HDL-C) (ß=-0.009; 95% CI: -0.02, -0.001), and systolic blood pressure (SBP) (ß=-0.01; 95% CI: -0.03, -0.00). We observed a positive significant association between free testosterone (fT) and fasting insulin (ß=0.49; 95% CI: 0.05, 0.91); this association remained significant after adjustment for confounders. We also detected a reverse association between fT and HDL-C (ß=-0.41; 95% CI: -0.70, -0.12). There was a positive significant association between A4 and TG (ß=0.02; 95% CI: 0.00, 0.04) after adjustment for PCOS diagnosis criteria. We also found significant negative associations between A4, TC, and LDL-C. Dehydroepiandrosterone sulfate (DHEAS) had a positive association with LDL-C (ß=0.02; 95% CI: 0.001, 0.03) and a reverse significant association with HDL-C (ß=-0.03; 95% CI: -0.06, -0.001). This meta-analysis confirmed the associations of some androgenic and metabolic parameters, indicating that measurement of these parameters may be useful for predicting metabolic risk in PCOS patients.


Asunto(s)
Hiperandrogenismo/metabolismo , Síndrome del Ovario Poliquístico/metabolismo , Andrógenos/metabolismo , Presión Sanguínea , Colesterol/metabolismo , Femenino , Humanos , Hiperandrogenismo/genética , Hiperandrogenismo/fisiopatología , Insulina/metabolismo , Síndrome del Ovario Poliquístico/genética , Síndrome del Ovario Poliquístico/fisiopatología , Testosterona/metabolismo
16.
J Sex Marital Ther ; 45(6): 488-496, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30640582

RESUMEN

Aims: We aimed to assess the association of postpartum maternal serum concentration of orexin-A with postpartum marital satisfaction considering the effect of mode of delivery as an influential factor. Methods: This cohort study conducted among third trimester pregnant women, who met our eligibility criteria. Postpartum maternal and cord serum concentration of orexin-A were measured and their association with postpartum marital satisfaction were assessed considering the impact of mode of delivery. Results: There was a statistically significant positive association between postpartum maternal and cord serum levels of orexin-A (r = 0.79, p < 0.001) and postpartum marital satisfaction among women with cesarean section (r = 0.31, p < 0.01). The maternal orexin-A level of women delivered with cesarean section who had post-partum marital dissatisfaction was significantly lower than those one with marital satisfaction (84.13 ± 95.88 vs. 153.08 ± 95.88 pg/ml, p = 0.04). Logistic regression model showed that the type of delivery was not related to marital satisfaction (OR = 1.7, 95%CI: 0.6, 4.8), p = 0.280). Conclusions: The postpartum maternal serum orexin-A level was associated with marital satisfaction in women delivered through cesarean section.


Asunto(s)
Parto Obstétrico/psicología , Matrimonio/psicología , Orexinas/sangre , Satisfacción Personal , Periodo Posparto/psicología , Adulto , Cesárea/psicología , Estudios de Cohortes , Femenino , Humanos , Periodo Posparto/sangre , Embarazo
17.
Arch Gynecol Obstet ; 300(4): 805-819, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31399840

RESUMEN

PURPOSE: To evaluate the benefits of LT4 treatment on pregnancy outcomes in SCH women. STUDY DESIGN: PubMed [including Medline], Web of Science, Wiley, Google Scholar, Science direct and Scopus were searched for identifying and retrieving all English articles published up to May 2018 on the effects of levothyroxine treatment on pregnancy outcomes in pregnant women with SCH compared to untreated or healthy controls. In this systematic review and meta-analysis, both fixed and random effect models were applied to estimate the pooled effect size. Heterogeneity and publication bias were evaluated using the I-squared (I2) and Begg's statistics, respectively. We also explored heterogeneity sources using meta-regression models and sensitivity analysis. RESULTS: Data of 13 cohort studies and randomized controlled trials with a total of 11,503 participants were analyzed. This meta-analysis showed that pregnant women with SCH treated with levothyroxine had lower chances of pregnancy loss (OR 0.78, 95% CI 0.66-0.94; I2 = 0%) and higher chances for live birth rates (OR 2.72, 95% CI 1.44-5.11; I2 = 25%) than the placebo group. Compared to euthyroid women, SCH patients treated with levothyroxine had higher odds ratio for preterm labor (OR 1.82, 95% CI 1.14-2.91; I2 = 0%). CONCLUSIONS: Results of this study showed that the effects of treatment with levothyroxine in SCH pregnant women are not the same for all pregnancy outcomes. Levothyroxine treatment in these patients can reduce pregnancy loss. Considering the limited number of studies available, further studies are warranted to document more precise data on other consequences.


Asunto(s)
Hipotiroidismo/tratamiento farmacológico , Complicaciones del Embarazo/tratamiento farmacológico , Tiroxina/uso terapéutico , Adulto , Femenino , Humanos , Embarazo , Resultado del Embarazo , Tiroxina/farmacología , Adulto Joven
18.
Clin Endocrinol (Oxf) ; 88(2): 169-184, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28930378

RESUMEN

BACKGROUND AND OBJECTIVE: Polycystic ovary syndrome (PCOS) is a common heterogeneous endocrine disorder associated with metabolic syndrome (MetS). The aim of this systematic review and meta-analysis was to provide the most reliable estimate risk of MetS in women with PCOS, compared to healthy controls. METHODS: A comprehensive literature search was performed in PubMed [including Medline], Web of Science and Scopus databases for retrieving articles in English language on the prevalence/incidence and odds of MetS in women with PCOS compared to healthy controls. Mantel-Haenszel methods of meta-analysis were used to present results in terms of the pooled odds ratio (OR) (95% confidence interval [CI]) using fixed/random-effects models with/without the publication bias correction, based on the various subgroups of age and study methods. Newcastle-Ottawa Scaling and The Cochrane Collaboration's risk of bias assessment tool were used to evaluate the quality of studies included. RESULTS: The search strategy yielded 2759 potentially relevant articles of which 44 articles were included for meta-analysis. Results of the meta-analysis demonstrated that the patients with PCOS regardless of age, BMI and recruitment sources of samples had higher odds of MetS compared to healthy controls (OR 2.5, 95% CI 2.0-3.2). However, adolescents with PCOS had an increased odds of MetS compared to healthy adolescent controls in population- and nonpopulation-based studies (OR 4.7, 95% CI 1.8-11.9; OR 6.1, 95% CI 6.0- 6.1, respectively). However, the odds of MetS had no differences between adults with PCOS compared to healthy controls in population-based studies. These results were confirmed by the subgroup meta-analysis of some studies using age and BMI adjustment/matching. In addition, subgroup analysis based on diagnostic criteria of PCOS showed that the OR of MetS in PCOS using NIH criteria was higher than AES and Rotterdam criteria (Pooled Overall OR based on NIH criteria = 6.05, 95% CIL: 6.0-6.04). CONCLUSION: These findings provide some information on the real features and a broader view of this syndrome that also helps clarify conflicting results documented in the literature. Accordingly, in prevention strategies, routine screening for metabolic syndrome is suggested for adolescents with PCOS.


Asunto(s)
Síndrome Metabólico/epidemiología , Síndrome del Ovario Poliquístico/epidemiología , Femenino , Humanos , Masculino , Oportunidad Relativa , Prevalencia , PubMed
19.
Clin Endocrinol (Oxf) ; 87(3): 217-230, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28575537

RESUMEN

BACKGROUND AND OBJECTIVE: A limited number of studies have evaluated the relationship between clinical and biochemical hyperandrogenism (HA). This study aimed to evaluate the association between biochemical hyperandrogenism parameters (BHPs) and Ferriman-Gallwey (FG) score in patients with polycystic ovary syndrome (PCOS). METHODS: We searched PubMed, Scopus, Google Scholar, ScienceDirect and Web of Sciences databases (2000-2015) to identify studies investigating clinical and biochemical parameters of HA in PCOS patients. In this meta-analysis, both fixed and random effect models were applied to estimate pooled effect size. To assess the relationships between BHPs and FG score, meta-regression analysis was used. RESULTS: Fifty-five study groups with a total of 6593 PCOS patients were analysed. Meta-regression analysis of pooled data from all eligible studies showed significant positive relationships of FG score with androstenedione (A4) (P=.034) and dehydroepiandrosterone sulphate (DHEAS) (P=.012), whereas it showed no association with total testosterone (tT), free testosterone (fT), sex hormone bonding globulin (SHBG) and free androgen index (FAI). The results did not change after adjusting for quality assessment or method of assay. Nor did the associations between A4 and FG score remain after adjusting for age and BMI, diagnostic criteria for PCOS and study design or the association between DHEAS and FG score remain after adjusting for ethnicity. CONCLUSION: This meta-analysis confirmed the associations of some BHPs, including A4 and DHEAS with FG score, indicating that measurement of these parameters can be useful for managing PCOS patients with hirsutism.


Asunto(s)
Hiperandrogenismo/diagnóstico , Síndrome del Ovario Poliquístico/complicaciones , Androstenodiona/análisis , Sulfato de Deshidroepiandrosterona/análisis , Manejo de la Enfermedad , Femenino , Hirsutismo , Humanos , Hiperandrogenismo/complicaciones
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