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1.
Public Health Nutr ; 26(S1): s20-s31, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36779266

RESUMEN

OBJECTIVE: To inform strategies aimed at improving blood pressure (BP) control and reducing salt intake, we assessed educational inequalities in high blood pressure (HBP) awareness, treatment and control; physician's advice on salt reduction; and salt knowledge, perceptions and consumption behaviours in Eastern Europe and Central Asia. DESIGN: Data were collected in cross-sectional, population-based nationally representative surveys, using a multi-stage clustered sampling design. Five HBP awareness, treatment and control categories were created from measured BP and hypertension medication use. Education and other variables were self-reported. Weighted multinomial mixed-effects regression models, adjusted for confounders, were used to assess differences across education categories. SETTINGS: Nine Eastern European and Central Asian countries (Armenia, Azerbaijan, Belarus, Georgia, Kyrgyzstan, Republic of Moldova, Tajikistan, Turkey and Uzbekistan). PARTICIPANTS: Nationally representative samples of 30 455 adults aged 25-65 years. RESULTS: HBP awareness, treatment and control varied substantially by education. The coverage of physician's advice on salt was less frequent among participants with lower education, and those with untreated HBP or unaware of their HBP. The education gradient was evident in salt knowledge and perceptions of salt intake but not in salt consumption behaviours. Improved salt knowledge and perceptions were more prevalent among participants who received physician's advice on salt reduction. CONCLUSIONS: There is a strong education gradient in HBP awareness, treatment and control as well as salt knowledge and perceived intake. Enhancements in public and patient knowledge and awareness of HBP and its risk factors targeting socio-economically disadvantaged groups are urgently needed to alleviate the growing HBP burden in low- and middle-income countries.


Asunto(s)
Hipertensión , Cloruro de Sodio Dietético , Adulto , Humanos , Cloruro de Sodio Dietético/uso terapéutico , Estudios Transversales , Hipertensión/epidemiología , Hipertensión/prevención & control , Asia , Organización Mundial de la Salud
2.
J Nutr ; 151(Suppl 1): 15S-28S, 2021 02 15.
Artículo en Inglés | MEDLINE | ID: mdl-33582785

RESUMEN

BACKGROUND: Anemia, iron deficiency, and iodine deficiency are problems of important public health concern in many parts of the world, with consequences for the health, development, and work capacity of populations. Several countries are beginning to implement double fortified salt (DFS) programs to simultaneously address iodine and iron deficiencies. OBJECTIVE: Our objective was to summarize the evidence for efficacy and effectiveness of DFS on the full range of status and functional outcomes and across different implementation and evaluation designs essential to successful interventions. METHODS: We conducted a systematic review and meta-analysis of published and gray literature examining the effects of DFS on nutritional status, cognition, work productivity, development, and morbidity of all population groups. We searched for articles in Medline, Embase, CINAHL, Cochrane Central Register, and ProQuest for randomized trials, quasi-randomized trials, and program effectiveness evaluations. RESULTS: A total of 22 studies (N individuals = 52,758) were included. Efficacy studies indicated a significant overall positive effect on hemoglobin concentration [standardized mean difference (95% CI): 0.33 (0.18, 0.48)], ferritin [0.42 (0.08, 0.76)], anemia [risk ratio (95% CI): 0.80 (0.70, 0.92)], and iron deficiency anemia [0.36 (0.24, 0.55)]. Effects on urinary iodine concentration were not significantly different between DFS and iodized salt. The impact on functional outcomes was mixed. Only 2 effectiveness studies were identified. They reported programmatic challenges including low coverage, suboptimal DFS quality, and storage constraints. CONCLUSIONS: Given the biological benefits of DFS across several populations in efficacy research, additional evaluations of robust DFS programs delivered at scale, which consider effective implementation and measure appropriate biomarkers, are needed.


Asunto(s)
Anemia Ferropénica/dietoterapia , Anemia/dietoterapia , Alimentos Fortificados , Yodo/uso terapéutico , Hierro de la Dieta/administración & dosificación , Hierro de la Dieta/uso terapéutico , Cloruro de Sodio Dietético/uso terapéutico , Cognición , Eficiencia , Estudios de Evaluación como Asunto , Estado de Salud , Humanos , Yodo/deficiencia , Deficiencias de Hierro , Morbilidad , Estado Nutricional
3.
Clin Exp Dermatol ; 46(7): 1243-1247, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33764555

RESUMEN

BACKGROUND: Recurrent bleeding episodes are often a cause of significant anxiety in patients with pyogenic granuloma (PG). The idea of using common salt for the treatment of PG arose from the need for a relatively safe and effective treatment because of the recurrent nature of the lesion. METHODS: A prospective open-label uncontrolled study of 50 patients was conducted. All cases were treated with ordinary table salt from a commercially available package. White soft paraffin was first applied over the perilesional skin, then sufficient salt to cover the entire lesion was applied and the area was occluded with surgical adhesive tape. All patients were followed up for any complications or recurrence. RESULTS: Complete resolution of the lesion without any residual scar was seen in 100% of the cases, and 94% reported a decrease in the bleeding tendency of the lesion as an immediate response. The mean time to complete resolution was 14.77 days. Recurrence was noted in one patient after 11 months of resolution. CONCLUSION: Owing to the relative ease in application, lack of scarring and excellent response, we consider salt application to be an ideal treatment for PG lesions, especially in children and anxious patients reluctant to undergo any procedure.


Asunto(s)
Granuloma Piogénico/terapia , Cloruro de Sodio Dietético/uso terapéutico , Adolescente , Adulto , Niño , Preescolar , Femenino , Humanos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Estudios Prospectivos , Cloruro de Sodio Dietético/efectos adversos
4.
Clin Endocrinol (Oxf) ; 91(5): 652-659, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31400012

RESUMEN

OBJECTIVE: To investigate the impact of mandatory iodine fortification (IF) on the incidence of nosological subtypes of overt thyrotoxicosis and hypothyroidism. DESIGN: We identified and scrutinized all possible new cases of overt thyrotoxicosis and hypothyroidism in an open cohort in Northern Jutland (n = 309 434; 1 January 1997) during the years 2014-2016. Individual medical history was evaluated to verify and detail the incidence of overt thyroid dysfunction and for classification into nosological subtypes. A number of cases were excluded during final verification due to spontaneous normalization of thyroid function, as they had no medical history suggesting a known condition, which could transiently affect thyroid function (subacute/silent thyroiditis, PPTD and iatrogenic thyroid dysfunction). An identical survey was conducted in 1997-2000 prior to mandatory IF of salt (13 µg/g) that was in effect from year 2001. RESULTS: The standardized incidence rate (SIR) of verified overt thyrotoxicosis decreased markedly from 97.5/100 000/year in 1997-2000 to 48.8 in 2014-2016 (SIRR: 0.50 [95% CI: 0.45-0.56]). This was due to a distinct decrease in the SIR of multinodular toxic goitre (SIRR: 0.18 [0.15-0.23]), solitary toxic adenoma (SIRR: 0.26 [0.16-0.43]) and to a lesser degree Graves' disease (SIRR: 0.67 [0.56-0.79]). SIR for overt hypothyroidism was unaltered by 2014-2016 (SIRR: 1.03 [0.87-1.22]). However, age distribution shifted with more young and fewer elderly cases of verified overt hypothyroidism. CONCLUSION: Mandatory IF caused a substantial reduction in SIR of verified overt thyrotoxicosis (especially of nodular origin) while avoiding an increase in SIR of verified overt hypothyroidism.


Asunto(s)
Hipotiroidismo/dietoterapia , Hipotiroidismo/patología , Yodo/uso terapéutico , Tirotoxicosis/dietoterapia , Tirotoxicosis/patología , Adulto , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Especies Reactivas de Oxígeno/metabolismo , Cloruro de Sodio Dietético/uso terapéutico , Pruebas de Función de la Tiroides
5.
Public Health Nutr ; 22(18): 3416-3425, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31342886

RESUMEN

OBJECTIVE: The present study examines characteristics of those who benefited from a dietary Fe intervention comprised of salt double-fortified with iodine and Fe (DFS). DESIGN: Data from a randomized controlled trial were analysed to identify predictors of improved Fe status and resolution of Fe deficiency (serum ferritin (sFt) < 12 µg/l) and low body Fe (body Fe (BI) < 0·0 mg/kg) using non-parametric estimations and binomial regression models. SETTING: A tea estate in West Bengal, India. PARTICIPANTS: Female tea pluckers, aged 18-55 years. RESULTS: Consuming DFS significantly (P = 0·01) predicted resolution of Fe deficiency (relative risk (RR) = 2·31) and of low BI (RR = 2·78) compared with consuming iodized salt. Baseline sFt (ß = -0·32 (se 0·03), P < 0·001) and treatment group (ß = 0·13 (se 0·03), P < 0·001) significantly predicted change in sFt. The interaction of baseline BI with treatment group (ß = -0·11 (se 0·06), P = 0·08) predicted the change in BI. DFS did not significantly predict change in Hb and marginally predicted resolution of anaemia (Hb < 120 g/l). CONCLUSIONS: Baseline Fe status, as assessed by sFt and BI, and consumption of DFS predict change in Fe status and resolution of Fe deficiency and low BI. Anaemia prevalence and Hb level, although simple and inexpensive to measure, may not be adequate to predict resolution of Fe deficiency in response to an intervention of DFS in similar populations with high prevalence of Fe deficiency and multiple nutritional causes of anaemia. These findings will guide appropriate targeting of future interventions.


Asunto(s)
Anemia Ferropénica , Agricultores , Yodo , Hierro , Cloruro de Sodio Dietético , Adulto , Anemia Ferropénica/tratamiento farmacológico , Anemia Ferropénica/epidemiología , Femenino , Ferritinas/sangre , Alimentos Fortificados , Hemoglobinas/análisis , Humanos , India , Yodo/administración & dosificación , Yodo/sangre , Yodo/uso terapéutico , Hierro/administración & dosificación , Hierro/uso terapéutico , Deficiencias de Hierro , Persona de Mediana Edad , Cloruro de Sodio Dietético/administración & dosificación , Cloruro de Sodio Dietético/uso terapéutico , , Resultado del Tratamiento
6.
Zhonghua Yu Fang Yi Xue Za Zhi ; 53(11): 1173-1175, 2019 Nov 06.
Artículo en Zh | MEDLINE | ID: mdl-31683409

RESUMEN

Iodine nutrition surveillance of vulnerable population was conducted in 18 cities of Henan Province in 2015. The medians and quartiles of urinary iodine concentration in women of reproductive-age (n=3 318), pregnant women (n=36 366), lactating women (n=4 153), infants <2 years of age (n=1 017), and children aged 8-10 years (n=4 806) were 202.1(124.0, 310.0), 192.4(133.6, 262.4), 168.3(119.1, 248.3), 214.2(156.1, 272.3) and 90.0 (121.8, 285.6) µg/L, respectively. Iodine status of the vulnerable populations was generally regarded as adequate in Henan Province. But the median of urinary iodine concentration of reproductive-age women were slightly above the adequate level. The proportions above iodine adequate level were 26.7% in reproductive-age women, 29.4% in pregnant women and 22.5% in children aged 8-10 years.


Asunto(s)
Yodo/sangre , Yodo/deficiencia , Estado Nutricional , Cloruro de Sodio Dietético/administración & dosificación , Poblaciones Vulnerables , Adulto , Niño , Preescolar , China , Ciudades , Estudios Transversales , Femenino , Humanos , Lactante , Yodo/administración & dosificación , Yodo/uso terapéutico , Lactancia , Masculino , Vigilancia de la Población , Embarazo , Cloruro de Sodio Dietético/uso terapéutico
7.
Matern Child Nutr ; 14(1)2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-28593684

RESUMEN

Pregnant women are prone to iodine deficiency due to the increased need for iodine during gestation. Progress has recently occurred in establishing serum thyroglobulin (Tg) as an iodine status biomarker, but there is no accepted reference range for iodine sufficiency during pregnancy. An observational study was conducted in 164 pregnant women. At week 16 of gestation urinary iodine concentration (UIC), serum Tg, and thyroid functions were measured, and information on the type of iodine supplementation and smoking were recorded. The parameters of those who started iodine supplementation (≥150 µg/day) at least 4 weeks before pregnancy (n = 27), who started at the detection of pregnancy (n = 51), and who had no iodine supplementation (n = 74) were compared. Sufficient iodine supply was found in the studied population based on median UIC (162 µg/L). Iodine supplementation ≥150 µg/day resulted in higher median UIC regardless of its duration (nonusers: 130 µg/L vs. prepregnancy iodine starters: 240 µg/L, and pregnancy iodine starters: 205 µg/L, p < .001, and p = .023, respectively). Median Tg value of pregnancy starters was identical to that of nonusers (14.5 vs. 14.6 µg/L), whereas prepregnancy starters had lower median Tg (9.1 µg/L, p = .018). Serum Tg concentration at week 16 of pregnancy showed negative relationship (p = .010) with duration of iodine supplementation and positive relationship (p = .008) with smoking, a known interfering factor of iodine metabolism, by multiple regression analysis. Serum Tg at week 16 of pregnancy may be a promising biomarker of preconceptual and first trimester maternal iodine status, the critical early phase of foetal brain development.


Asunto(s)
Enfermedades Carenciales/prevención & control , Yodo/uso terapéutico , Fenómenos Fisiologicos Nutricionales Maternos , Estado Nutricional , Atención Preconceptiva , Complicaciones del Embarazo/prevención & control , Tiroglobulina/sangre , Adulto , Biomarcadores/sangre , Biomarcadores/orina , Enfermedades Carenciales/sangre , Enfermedades Carenciales/etiología , Enfermedades Carenciales/orina , Dieta Saludable , Suplementos Dietéticos , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , Hungría , Yodo/deficiencia , Yodo/orina , Cooperación del Paciente , Embarazo , Complicaciones del Embarazo/sangre , Complicaciones del Embarazo/etiología , Complicaciones del Embarazo/orina , Primer Trimestre del Embarazo , Segundo Trimestre del Embarazo , Valores de Referencia , Autoinforme , Fumar/efectos adversos , Cloruro de Sodio Dietético/uso terapéutico
8.
Kidney Int ; 91(1): 24-33, 2017 01.
Artículo en Inglés | MEDLINE | ID: mdl-28003083

RESUMEN

Gitelman syndrome (GS) is a rare, salt-losing tubulopathy characterized by hypokalemic metabolic alkalosis with hypomagnesemia and hypocalciuria. The disease is recessively inherited, caused by inactivating mutations in the SLC12A3 gene that encodes the thiazide-sensitive sodium-chloride cotransporter (NCC). GS is usually detected during adolescence or adulthood, either fortuitously or in association with mild or nonspecific symptoms or both. The disease is characterized by high phenotypic variability and a significant reduction in the quality of life, and it may be associated with severe manifestations. GS is usually managed by a liberal salt intake together with oral magnesium and potassium supplements. A general problem in rare diseases is the lack of high quality evidence to inform diagnosis, prognosis, and management. We report here on the current state of knowledge related to the diagnostic evaluation, follow-up, management, and treatment of GS; identify knowledge gaps; and propose a research agenda to substantiate a number of issues related to GS. This expert consensus statement aims to establish an initial framework to enable clinical auditing and thus improve quality control of care.


Asunto(s)
Síndrome de Bartter/diagnóstico , Condrocalcinosis/etiología , Suplementos Dietéticos , Síndrome de Gitelman/diagnóstico , Síndrome de Gitelman/tratamiento farmacológico , Antagonistas de Receptores de Angiotensina/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Antiinflamatorios no Esteroideos/uso terapéutico , Síndrome de Bartter/sangre , Síndrome de Bartter/genética , Síndrome de Bartter/orina , Calcio/orina , Canales de Cloruro/genética , Condrocalcinosis/prevención & control , Conferencias de Consenso como Asunto , Diagnóstico Diferencial , Pruebas Genéticas , Síndrome de Gitelman/complicaciones , Síndrome de Gitelman/genética , Humanos , Hipopotasemia/sangre , Hipopotasemia/genética , Magnesio/administración & dosificación , Magnesio/sangre , Magnesio/uso terapéutico , Mutación , Fenotipo , Potasio/administración & dosificación , Potasio/sangre , Potasio/uso terapéutico , Guías de Práctica Clínica como Asunto , Calidad de Vida , Enfermedades Raras/genética , Cloruro de Sodio Dietético/uso terapéutico , Miembro 3 de la Familia de Transportadores de Soluto 12/genética , Ultrasonografía
9.
Public Health Nutr ; 20(16): 3008-3018, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28879830

RESUMEN

OBJECTIVE: Fortification of food-grade (edible) salt with iodine is recommended as a safe, cost-effective and sustainable strategy for the prevention of iodine-deficiency disorders. The present paper examines the legislative framework for salt iodization in Asian countries. DESIGN: We reviewed salt iodization legislation in thirty-six countries in Asia and the Pacific. We obtained copies of existing and draft legislation for salt iodization from UNICEF country offices and the WHO's Global Database of Implementation of Nutrition Actions. We compiled legislation details by country and report on commonalities and gaps using a standardized form. The association between type of legislation and availability of iodized salt in households was assessed. RESULTS: We identified twenty-one countries with existing salt iodization legislation, of which eighteen were mandatory. A further nine countries have draft legislation. The majority of countries with draft and existing legislation used a mandatory standard or technical regulation for iodized salt under their Food Act/Law. The remainder have developed a 'stand-alone' Law/Act. Available national surveys indicate that the proportion of households consuming adequately iodized salt was lowest in countries with no, draft or voluntary legislation, and highest in those where the legislation was based on mandatory regulations under Food Acts/Laws. CONCLUSIONS: Legislation for salt iodization, particularly mandatory legislation under the national food law, facilitates universal salt iodization. However, additional important factors for implementation of salt iodization and maintenance of achievements include the salt industry's structure and capacity to adequately fortify, and official commitment and capacity to enforce national legislation.


Asunto(s)
Enfermedades Carenciales/prevención & control , Alimentos Fortificados , Implementación de Plan de Salud , Yodo/deficiencia , Legislación Alimentaria , Cloruro de Sodio Dietético/uso terapéutico , Asia/epidemiología , Enfermedades Carenciales/epidemiología , Alimentos Fortificados/normas , Implementación de Plan de Salud/legislación & jurisprudencia , Implementación de Plan de Salud/tendencias , Humanos , Yodo/normas , Yodo/uso terapéutico , Legislación Alimentaria/tendencias , Programas Obligatorios/legislación & jurisprudencia , Islas del Pacífico/epidemiología , Riesgo , Cloruro de Sodio Dietético/normas , Programas Voluntarios/legislación & jurisprudencia
11.
Br J Nutr ; 114(11): 1829-37, 2015 Dec 14.
Artículo en Inglés | MEDLINE | ID: mdl-26411504

RESUMEN

The objective of the present study was to assess the impact of providing small-quantity lipid-based nutrient supplements (SQ-LNS) on the I status of young Burkinabe children. In total, thirty-four communities were assigned to intervention (IC) or non-intervention cohorts (NIC). IC children were randomly assigned to receive 20 g lipid-based nutrient supplements (LNS)/d containing 90 µg I with 0 or 10 mg Zn from 9 to 18 months of age, and NIC children received no SQ-LNS. All the children were exposed to iodised salt through the national salt iodization programme. Spot urinary iodine (UI), thyroid-stimulating hormone (TSH) and total thyroxine (T4) in dried blood spots as well as plasma thyroglobulin (Tg) concentrations were assessed at 9 and 18 months of age among 123 IC and fifty-six NIC children. At baseline and at 18 months, UI, TSH and T4 did not differ between cohorts. Tg concentration was higher in the NIC v. IC at baseline, but this difference did not persist at 18 months of age. In both cohorts combined, the geometric mean of UI was 339·2 (95% CI 298·6, 385·2) µg/l, TSH 0·8 (95% CI 0·7, 0·8) mU/l, T4 118 (95 % CI 114, 122) nmol/l and Tg 26·0 (95% CI 24·3, 27·7) µg/l at 18 months of age. None of the children had elevated TSH at 18 months of age. Marginally more children in NIC (8·9%) had low T4 (15 ppm). A reduction of SQ-LNS I content could be considered in settings with similarly successful salt iodisation programmes.


Asunto(s)
Enfermedades Carenciales/dietoterapia , Suplementos Dietéticos , Fenómenos Fisiológicos Nutricionales del Lactante , Yodo/uso terapéutico , Estado Nutricional , Salud Rural , Cloruro de Sodio Dietético/uso terapéutico , Burkina Faso/epidemiología , Análisis por Conglomerados , Estudios de Cohortes , Enfermedades Carenciales/sangre , Enfermedades Carenciales/epidemiología , Enfermedades Carenciales/orina , Grasas de la Dieta/administración & dosificación , Suplementos Dietéticos/efectos adversos , Femenino , Humanos , Lactante , Yodo/administración & dosificación , Yodo/deficiencia , Yodo/orina , Masculino , Prevalencia , Riesgo , Tiroglobulina/sangre , Tirotropina/sangre , Tiroxina/sangre , Zinc/administración & dosificación , Zinc/efectos adversos , Zinc/deficiencia , Zinc/uso terapéutico
12.
Wei Sheng Yan Jiu ; 44(3): 393-7, 2015 May.
Artículo en Zh | MEDLINE | ID: mdl-26137616

RESUMEN

OBJECTIVE: To explore the changes of goiter prevalence of children living in areas with high iodine in drinking water after removing iodized salt from their diet. METHODS: Three towns with median water iodine of 150 - 300 µg/L were selected randomly in Hengshui city of Hebei province of China. A total of 452 and 459 children in the 3 towns were randomly selected to measure thyroid volume by ultrasound before and after removing iodized salt, respectively. Their goiter status was judged using the criteria of age-specific thyroid volume recommended by the WHO. RESULTS: After removing iodized salt, the overall goiter prevalence in the three towns significantly decreased from 24.56% (111/452) to 5.88% (27/459) (P < 0.01). The goiter prevalence in 8, 9 and 10 year-old children decreased respectively from 33.70% (31/92), 23.32% (45/193) and 20.96% (35/167) to 6.10% (10/164), 5.52% (9/163) and 6.06% (8/132). The goiter prevalence in boys and girls decreased from 27.05% (66/244) and 21.63% (45/208 ) to 6.66% (15/226 ) and 5.15% (12/233), respectively. The decreases in children's goiter prevalence across gender and age group were all significant. CONCLUSION: Children's goiter prevalence decreased significantly after removing iodized salt from their diet for about one and half years in the HIA in Hebei province.


Asunto(s)
Agua Potable/química , Bocio/diagnóstico por imagen , Cloruro de Sodio Dietético/uso terapéutico , Glándula Tiroides/diagnóstico por imagen , Niño , China/epidemiología , Dieta , Femenino , Bocio/epidemiología , Humanos , Yoduros , Yodo , Masculino , Estado Nutricional , Prevalencia , Valores de Referencia , Medio Social , Ultrasonografía , Agua
13.
Public Health Nutr ; 17(9): 1971-4, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24598389

RESUMEN

OBJECTIVE: Iodine is an essential micronutrient needed for the production of thyroid hormones. Pregnant mothers who are deficient in iodine provide less iodine to the fetal thyroid. This results in low production of thyroid hormones by the fetal thyroid, thereby leading to compromised mental and physical development of the fetus. The current study aimed to assess the current status of iodine nutrition among pregnant mothers in Himachal Pradesh, India, a known endemic region for iodine deficiency. DESIGN: Three districts, namely Kangra, Kullu and Solan, were selected. SETTING: In each district, thirty clusters (villages) were identified by utilizing the population-proportional-to-size cluster sampling methodology. In each cluster, seventeen pregnant mothers attending the antenatal clinics were included. SUBJECTS: A total of 1711 pregnant mothers (647 from Kangra, 551 from Kullu and 513 from Solan) were studied. Clinical examination of the thyroid of each pregnant mother was conducted. Spot urine samples were collected from ten pregnant mothers in each cluster. Similarly, salt samples were collected from eleven pregnant mothers in each cluster. RESULTS: Total goitre rate was 42·2 % (Kangra), 42·0 % (Kullu) and 19·9 % (Solan). The median urinary iodine concentration was 200 µg/l (Kangra), 149 µg/l (Kullu) and 130 µg/l (Solan). The percentage of pregnant mothers consuming adequately iodized salt (iodine content of 15 ppm and more) was found to be 68·3 % (Kangra), 60·3 % (Kullu) and 48·5 % (Solan). CONCLUSION: Pregnant mothers in Kullu and Solan districts had iodine deficiency as indicated by a median urinary iodine concentration less than 150 µg/l.


Asunto(s)
Enfermedades Carenciales/epidemiología , Dieta/efectos adversos , Yodo/deficiencia , Fenómenos Fisiologicos Nutricionales Maternos , Estado Nutricional , Complicaciones del Embarazo/epidemiología , Salud Rural , Adulto , Análisis por Conglomerados , Enfermedades Carenciales/fisiopatología , Enfermedades Carenciales/prevención & control , Enfermedades Carenciales/orina , Femenino , Bocio Endémico/etiología , Bocio Endémico/patología , Humanos , India/epidemiología , Yodo/análisis , Yodo/química , Yodo/uso terapéutico , Yodo/orina , Tamaño de los Órganos , Embarazo , Complicaciones del Embarazo/fisiopatología , Complicaciones del Embarazo/prevención & control , Complicaciones del Embarazo/orina , Prevalencia , Cloruro de Sodio Dietético/uso terapéutico , Glándula Tiroides/patología , Adulto Joven
14.
BMC Public Health ; 14: 836, 2014 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-25118032

RESUMEN

BACKGROUND: Iodine deficiencies were prevalent in China until the introduction of universal salt iodization (USI) in 1995. In 2012, the standard salt iodine concentration was adjusted to 20-30 mg/kg. The success of USI for the control of iodine deficiency disorders requires monitoring its effect at a population level. METHODS: Two cross sectional surveys of a representative sample of children aged 8-10 years in Zhejiang Province were carried out in 2011 and 2013. Data on participants' socio-demographic characteristics were collected from the children using a structured questionnaire. Spot urine samples were collected and delivered to local Center for Disease Control and Prevention laboratory for measuring urinary iodine concentration. In 2011, out of 420 selected children aged 8-10 years, 391 were recorded and provided urine samples. In 2013, out of 1560 selected children aged 8-10 years, 1556 were recorded and provided urine samples. RESULTS: The median urinary iodine concentration of subjects in the 2013 survey was 174.3 µg/L, significantly lower than that of 2011(p = 0.000). The median urinary iodine concentration of subjects living in urban and rural areas in the 2013 survey was 169.0 µg/L, and 186.1 µg/L respectively, significantly lower than that of 2011 only for subjects living in urban areas (p = 0.000). There were no significant differences for subjects living in rural areas in the survey in 2011 and in 2013 (p = 0.086). CONCLUSIONS: At the time the new local iodization policy put forward, iodine nutrition was generally adequate in both urban and rural areas, suggesting that the new policy for adjusting the standard salt iodine concentration is effective. Our data also indicate that the reason people living in urban areas had a lower urinary iodine concentration than people in rural areas may be due to their preference for using non-iodized salt in the last 2 or 3 years. Maintaining USI at an appropriate level is an important part of preventing iodine deficiency disorders and should always be based on regular monitoring and comparison of urinary iodine concentration by province.


Asunto(s)
Yodo/uso terapéutico , Política Nutricional , Estado Nutricional , Cloruro de Sodio Dietético/uso terapéutico , Enfermedades de la Tiroides/prevención & control , Niño , China/epidemiología , Estudios Transversales , Demografía , Femenino , Preferencias Alimentarias , Humanos , Yodo/administración & dosificación , Yodo/normas , Yodo/orina , Masculino , Políticas , Prevalencia , Cloruro de Sodio Dietético/administración & dosificación , Cloruro de Sodio Dietético/normas , Cloruro de Sodio Dietético/orina , Encuestas y Cuestionarios , Enfermedades de la Tiroides/epidemiología , Enfermedades de la Tiroides/etiología , Enfermedades de la Tiroides/orina
15.
Indian J Public Health ; 58(2): 129-33, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24820989

RESUMEN

National iodine deficiency disorders control program needs to be continuously monitored. Hence, a cross-sectional study was conducted during the period from April-May 2011 to assess the prevalence of goiter, status of urinary iodine excretion (UIE) level and to estimate iodine content of salts at the household level in Darjeeling district, West Bengal. Study subjects were 2400 school children, aged 8-10 years selected through "30 cluster" sampling methodology. Goiter was assessed by standard palpation technique, UIE was estimated by wet digestion method and salt samples were tested by spot iodine testing kit. Overall goiter prevalence rate was 8.7% (95% confidence intervals = 7.6-9.8) and goiter prevalence was significantly different with respect to gender. Median UIE level was 15.6 mcg/dL (normal range: 10-20 mcg/dL). About 92.6% of the salt samples tested had adequate iodine content of ≥15 ppm. Findings of the present study indicate that the district is in a transition phase from iodine-deficiency to iodine sufficiency.


Asunto(s)
Bocio/epidemiología , Bocio/orina , Yodo/orina , Niño , Estudios Transversales , Femenino , Bocio/prevención & control , Humanos , India/epidemiología , Yodo/uso terapéutico , Masculino , Prevalencia , Cloruro de Sodio Dietético/uso terapéutico
16.
Semin Cell Dev Biol ; 22(6): 645-52, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21802524

RESUMEN

Iodine is an essential component of the hormones produced by the thyroid gland. Thyroid hormones, and therefore iodine, are essential for mammalian life. Iodine deficiency is a major public health problem; globally, it is estimated that two billion individuals have an insufficient iodine intake. Although goiter is the most visible sequelae of iodine deficiency, the major impact of hypothyroidism due to iodine deficiency is impaired neurodevelopment, particularly early in life. In the fetal brain, inadequate thyroid hormone impairs myelination, cell migration, differentiation and maturation. Moderate-to-severe iodine deficiency during pregnancy increases rates of spontaneous abortion, reduces birth weight, and increases infant mortality. Offspring of deficient mothers are at high risk for cognitive disability, with cretinism being the most severe manifestation. It remains unclear if development of the offspring is affected by mild maternal iodine deficiency. Moderate-to-severe iodine deficiency during childhood reduces somatic growth. Correction of mild-to-moderate iodine deficiency in primary school aged children improves cognitive and motor function. Iodine prophylaxis of deficient populations with periodic monitoring is an extremely cost effective approach to reduce the substantial adverse effects of iodine deficiency throughout the life cycle.


Asunto(s)
Biología Evolutiva , Desarrollo Fetal/fisiología , Enfermedades del Recién Nacido/metabolismo , Yodo/deficiencia , Glándula Tiroides/metabolismo , Hormonas Tiroideas/deficiencia , Aborto Espontáneo/metabolismo , Aborto Espontáneo/fisiopatología , Adulto , Peso al Nacer , Diferenciación Celular , Movimiento Celular , Niño , Trastornos del Conocimiento/tratamiento farmacológico , Trastornos del Conocimiento/metabolismo , Trastornos del Conocimiento/fisiopatología , Hipotiroidismo Congénito/tratamiento farmacológico , Hipotiroidismo Congénito/metabolismo , Hipotiroidismo Congénito/fisiopatología , Embrión de Mamíferos , Femenino , Feto , Bocio/tratamiento farmacológico , Bocio/metabolismo , Bocio/fisiopatología , Humanos , Mortalidad Infantil , Recién Nacido , Enfermedades del Recién Nacido/tratamiento farmacológico , Enfermedades del Recién Nacido/fisiopatología , Yodo/metabolismo , Yodo/uso terapéutico , Embarazo , Índice de Severidad de la Enfermedad , Cloruro de Sodio Dietético/metabolismo , Cloruro de Sodio Dietético/uso terapéutico , Glándula Tiroides/embriología , Glándula Tiroides/fisiopatología
17.
BMJ Open ; 13(2): e064613, 2023 02 28.
Artículo en Inglés | MEDLINE | ID: mdl-36854590

RESUMEN

OBJECTIVES: To investigate the prevalence and risk factors of hypothyroidism after universal salt iodisation for 20 years in mainland China. DESIGN: Nationwide, cross-sectional survey. SETTING AND PARTICIPANTS: The Thyroid Disorders, Iodine Status and Diabetes epidemiological study included adults from 31 provinces of China. Data included demographic, physical characteristics, urine, serum thyroid-stimulating hormone (TSH), thyroid-peroxidase antibody (TPOAb), thyroglobulin antibody (TgAb) and thyroid ultrasonography. Subclinical hypothyroidism (SCH) was classified into severe SCH (TSH >10 mU/L) and mild SCH (TSH 4.2-9.9 mU/L). A total of 78 470 (38 182 men and 40 288 women) participants were included in the final analysis. RESULTS: The prevalence of hypothyroidism was 13.95%. The prevalence rates of overt hypothyroidism (OH) and SCH were 1.02% and 13.93%, which mild SCH was significantly higher than severe SCH (12.18% vs 0.75%). Prevalence was higher in women than in men, and this gender difference was noted among all age groups. The prevalence of mild SCH, severe SCH and OH increases by 1.16%, 1.40% and 1.29% for every 10 years older. TPOAb or/and TgAb positive were significantly associated with OH and severe SCH (OR 15.9, p<0.001). However, SCH was positively correlated with increased urine iodine concentration, but this correlation was only in antibody-negative female patients. In non-autoimmune and male populations, there was a U-shaped relationship between severe SCH and OH and urine iodine concentration. CONCLUSIONS: Mild SCH is the most common form of hypothyroidism, which is related to iodine intake. Severe SCH is more similar to OH which autoimmune is the main cause. The various effects of iodine on hypothyroidism depend on thyroid autoimmune and gender.


Asunto(s)
Hipotiroidismo , Yodo , Adulto , Femenino , Humanos , Masculino , China/epidemiología , Estudios Transversales , Hipotiroidismo/epidemiología , Hipotiroidismo/prevención & control , Yodo/uso terapéutico , Prevalencia , Factores de Riesgo , Cloruro de Sodio Dietético/uso terapéutico , Tirotropina
18.
Indian J Public Health ; 56(1): 37-43, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22684171

RESUMEN

BACKGROUND: Edible salt iodization and iodized oil injections are the two most commonly used vehicles for iodine supplementation. In year 1989, the state government of Sikkim was planning to implement Iodine Deficiency Disorder control program in state and had following two options to choose from, based on existing knowledge; a) a salt iodization program, b) an iodized oil injection program. No information was available at that point of time on comparative advantages of the above stated two approaches. OBJECTIVES: To identify the most cost-effective alternative for IDD elimination in Sikkim, amongst the following 3 alternatives: a) Iodized salt program (ISP), b) Iodized oil injection program (IOP) to high risk group, c) no preventive program. MATERIALS AND METHODS: Study population was the general population of state of Sikkim, India in year 1990. Cost- effective analysis was undertaken comparing 3 alternative programs, targeted towards IDD elimination in state of Sikkim. Identification, measurement and valuation of the costs of ISP and IOP and identification and measurement of the consequences of IDD were done to carry out the cost-effective analysis. Visible goiter person years (VGPY), endemic cretinism, IDD attributable death were used to assess the health consequences/disease burden of IDD. RESULTS: The cost per VGPY, endemic cretinism and IDD attributable death were Rs 76.67, Rs 24,469 and Rs 9,720, respectively for ISP. The cost per VGPY, endemic cretinism and IDD attributable death were Rs 75.82, Rs 19,106 and Rs 7,709, respectively for IOP. CONCLUSION: The results of the analysis showed that iodized oil program is more cost-effective for prevention of irreversible IDDs than the iodated salt program in state of Sikkim, India.


Asunto(s)
Yodo/deficiencia , Aceite Yodado/economía , Aceite Yodado/uso terapéutico , Cloruro de Sodio Dietético/economía , Cloruro de Sodio Dietético/uso terapéutico , Adolescente , Adulto , Factores de Edad , Niño , Preescolar , Hipotiroidismo Congénito/epidemiología , Hipotiroidismo Congénito/prevención & control , Análisis Costo-Beneficio , Femenino , Bocio Endémico/epidemiología , Bocio Endémico/prevención & control , Gastos en Salud , Humanos , India/epidemiología , Lactante , Recién Nacido , Yodo/administración & dosificación , Yodo/economía , Yodo/uso terapéutico , Aceite Yodado/administración & dosificación , Masculino , Persona de Mediana Edad , Evaluación de Programas y Proyectos de Salud , Factores de Riesgo , Factores Sexuales , Cloruro de Sodio Dietético/administración & dosificación
19.
Eur J Endocrinol ; 186(5): 587-596, 2022 Apr 11.
Artículo en Inglés | MEDLINE | ID: mdl-35290211

RESUMEN

Objectives: International guidelines recommend additional salt supplementation during infancy in classic congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency. The influence of corticoid medication and growth has not been assessed. Aim: To investigate the current use of salt supplementation, fludrocortisone (FC) and hydrocortisone (HC) dosage as well as weight, height, BMI and blood pressure (BP) in CAH children aged 0-3 years. Methods: Retrospective multicentre analysis using data from the I-CAH registry. Salt-treated (ST) and non-salt-treated (NST) children were compared regarding FC and HC dosage, weight, height and BP at 0, 3, 6, 9, 12, 18, 24, 30, and 36 months. Results: We analysed 2483 visits of 331 patients born after year 2000 in 13 countries (male, n = 145) with 203 ST patients (61%). NST children had significantly higher FC dosages at 1.5-4.5 months and higher HC dosages until 1.5 months of age. No differences in weight, length and BP between subgroups were observed. Children of the whole cohort showed increased BMI-SDS during the study period and about half of the reported BP readings were >P95. Conclusion: In children treated with additional salt supplementation, FC and HC dosages are lower during the first months of life but without differences in weight, length and BP until 3 years of age compared to NST children. All children showed an increase in BMI-SDS and a high rate of BP readings >P95 until 3 years, indicating the start of weight gain and negative effects on blood pressure already in very early life.


Asunto(s)
Hiperplasia Suprarrenal Congénita , Glucocorticoides , Hiperplasia Suprarrenal Congénita/tratamiento farmacológico , Presión Sanguínea , Niño , Preescolar , Suplementos Dietéticos , Fludrocortisona/uso terapéutico , Glucocorticoides/uso terapéutico , Humanos , Hidrocortisona/uso terapéutico , Masculino , Mineralocorticoides/uso terapéutico , Estudios Retrospectivos , Cloruro de Sodio Dietético/uso terapéutico
20.
Comput Intell Neurosci ; 2022: 9432202, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36275968

RESUMEN

Objective: To understand the related influencing factors of outpatient hypertension detection and control and self-test control compliance rate. Methods: A total of 637 hypertensive patients who visited the outpatient clinic of our hospital from January 2021 to December 2021 were selected for investigation and research, and the relevant information such as blood pressure, treatment detection, and other related information of the patients were counted, and the detection and control of outpatient hypertension were explored through regression analysis and the related factors of the self-test control compliance rate. Results: There was no statistically significant difference in the number of patients who met the standard or not under the gender difference (P > 0.05), and it can be found that there was no statistically significant difference in the age of patients who met the standard and those who did not (P > 0.05). The proportion of patients with self-test hypertension control at home was 64.68%, and the compliance rate of self-test blood pressure was 42.54%. The compliance rate of blood pressure control in outpatient testing was 61.85%. Heart rate, exercise, smoking, medication compliance, and other factors are important factors affecting the control of hypertension. Knowing hypertension-related knowledge, regular follow-up, office blood pressure compliance, smoking, excessive salt intake, and hypertension complications are important factors affecting the self-test control of hypertension in the family. Conclusion: By urging patients to do daily physical exercise, admonishing patients to quit smoking, and improving patients' medication compliance, the control rate of hypertension in outpatient clinics can be effectively improved. Understanding the knowledge of hypertension, controlling the salt content in the diet, and receiving regular follow-up surveys from doctors can effectively improve the effect of self-measurement and control of blood pressure at home and further improve the control rate of hypertension.


Asunto(s)
Hipertensión , Autoevaluación (Psicología) , Humanos , Cloruro de Sodio Dietético/uso terapéutico , Hipertensión/diagnóstico , Hipertensión/tratamiento farmacológico , Cooperación del Paciente , Instituciones de Atención Ambulatoria
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