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1.
Clin Endocrinol (Oxf) ; 99(6): 566-578, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37656656

RESUMEN

OBJECTIVE: Polycystic ovary syndrome (PCOS) is a complex disorder with diverse metabolic implications. Diagnosis typically relies on oligo-amenorrhoea (OA), hyperandrogenism (HA), and polycystic ovarian morphology (PCOM). However, the role of polymenorrhoea in PCOS remains understudied. Additionally, limited information exists regarding metabolic disturbances in women with partial PCOS phenotypes that do not meet diagnostic criteria. This extensive database aims to provide substantial evidence on the metabolic implications of polymenorrhoea and partial PCOS phenotypes. DESIGN: Prospective observational study. PATIENTS AND MEASUREMENTS: In this single-centre study, 6463 women with PCOS-like characteristics and 3142 age-matched healthy women were included. The study compared clinical (anthropometry, modified Ferriman Gallwey [mFG] score), hormonal (serum testosterone), and metabolic (plasma glucose, serum lipids, insulin) characteristics between women diagnosed with PCOS, those with partial PCOS phenotypes, and the healthy control group RESULTS: In all, 5174 women met Rotterdam criteria for PCOS diagnosis, while 737 were classified as Pre-PCOS, including HA (n = 538), OA (n = 121), or PCOM (n = 78). Common clinical features included oligomenorrhoea (75.5%), hirsutism (82.9%), obesity (27.2%), hypertension (1.6%), metabolic syndrome (19.6%), and diabetes mellitus (5.6%). Women diagnosed with PCOS, HA only, and OA only exhibited higher average body mass index, plasma glucose levels (both fasting and 2 h after the oral glucose tolerance test), and lipid fractions in comparison to those with PCOM and the healthy controls. However, indices of insulin resistance were similar among women with PCOS, HA, PCOM, and OA, albeit higher than in the healthy controls. The polymenorrhoea subgroup (5.9%) had lower BMI and serum testosterone, but similar mFG score, plasma glucose, insulin, and lipid levels as the oligomenorrhoea subgroup. CONCLUSION: The metabolic disturbances observed in Pre-PCOS women highlight the need to reassess diagnostic criteria. Including the polymenorrhoea subcategory in PCOS criteria is recommended due to similar metabolic dysfunctions as the oligomenorrhoea group.


Asunto(s)
Hiperandrogenismo , Síndrome del Ovario Poliquístico , Femenino , Humanos , Oligomenorrea , Glucemia , Insulina , Testosterona , Lípidos
2.
J Cardiovasc Nurs ; 2023 Aug 28.
Artículo en Inglés | MEDLINE | ID: mdl-37639560

RESUMEN

BACKGROUND: Adults with heart failure (HF) experience a constellation of symptoms; however, understanding of gender differences in HF symptoms remain elusive. The aim of this study was to determine whether there are gender differences in physical and depressive symptoms and symptom patterns in HF using 2 different analytic techniques. METHODS: We performed a secondary analysis of combined data from 6 studies of adults with HF. Physical symptoms were measured with the HF Somatic Perception Scale, and depressive symptoms were measured with the Patient Health Questionnaire-9. First, we performed propensity matching with the nearest neighbor to examine the average treatment effect for HF Somatic Perception Scale and Patient Health Questionnaire-9 in the matched sample of women and men. Next, we used the entire data set in a latent class mixture model to determine patterns of symptoms. Finally, we calculated predictors of class membership with multinomial logistic regression. RESULTS: The sample (n = 524, 86.5% systolic HF) was 37% women with a mean age of 58.3 ± 13.9 years and mean number of years with HF of 6.9 ± 6.9. Three hundred sixty-six participants were matched on propensity scores; there were no significant gender differences in symptom scores between matched women (n = 183) and men (n = 183). Among all 524 participants, 4 distinct latent classes of symptom patterns indicate that many patients with HF are fatigued, some have more depressive symptoms, and others have significantly more edema or cough. Gender did not predict membership to any symptom pattern. CONCLUSIONS: There were significant gender differences in sociodemographics, health behaviors, and clinical characteristics, but not HF symptoms or symptom patterns, using either analytic technique.

3.
Am J Med Genet A ; 188(6): 1904-1908, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35191187

RESUMEN

Trisomy 18 or Edward syndrome is a chromosomal disorder due to the presence of an extra chromosome 18. We describe the phenotype of five fetuses at different gestational ages, each highlighting a different aspect of trisomy 18. The clinical spectrum included increased nuchal translucency, fetal hydrops, congenital malformations of the central nervous system, congenital heart disease, radial ray defects, and characteristic facial gestalt. We made a comparison of prenatal ultrasonography and the autopsy findings. The fetal autopsy defined the craniofacial and digit anomalies better compared with sonography. The facial features of tall forehead, hypoplastic nares, microstomia, micrognathia, low set abnormal ears along with clenched hands, and short hallux are typical for trisomy 18 and help in planning the targeted cytogenetic or molecular tests. The diagnosis was established by either fluorescence in situ hybridization or quantitative fluorescent polymerase chain reaction or chromosomal microarray in the patients. This communication emphasizes the importance of detailed assessment for craniofacial and limb anomalies on prenatal ultrasonography which can prompt an early evaluation for trisomy 18.


Asunto(s)
Trisomía , Ultrasonografía Prenatal , Femenino , Humanos , Hibridación Fluorescente in Situ , Fenotipo , Embarazo , Trisomía/diagnóstico , Trisomía/genética , Síndrome de la Trisomía 18/diagnóstico , Síndrome de la Trisomía 18/genética
4.
Pathologica ; 114(3): 221-227, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35775708

RESUMEN

Background: KRAS mutations are present in up to 30% of patients with lung adenocarcinoma. The two most common KRAS mutations in non-small cell lung cancer (NSCLC) are G12C (~40%) and G12V (~22%). We describe the case of a 63-year-old Asian male patient with a very aggressive lung adenocarcinoma harbouring two coexisting missense mutations in the same exon. Methods: The patient presented with a 6 cm spiculated lung mass and bilateral mediastinal lymphadenopathy on imaging. A cytology sample was obtained from EBUS-TBNA of mediastinal lymph nodes, and mutation screening was performed by next-generation sequencing using the Ion Torrent Cancer Hotspot panel. Results: Cytological examination and immunocytochemistry confirmed the presence of metastatic lung adenocarcinoma. The molecular analysis revealed the coexistence of two missense mutations: c.34G > T; p.(Gly12Cys) and c.38G > T; A; p.(Gly13Asp) in exon 2 of the KRAS gene. The two independent variants were confirmed on Integrative Genomic Viewer (IGV), suggesting molecularly independent clones. The patient was treated with palliative care and died within two months of the diagnosis. Conclusions: The present case showed aggressive clinical behaviour. It is questionable whether this aggressive course was due to the coexistence of multiple mutations or to a specific single mutation. Data in the literature regarding the outcome of polyclonal KRAS polyclonal lung adenocarcinomas are scarce, but some evidence seems to indicate that specific mutations may have prognostic value, possibly depending on the disease setting.


Asunto(s)
Adenocarcinoma del Pulmón , Adenocarcinoma , Carcinoma de Pulmón de Células no Pequeñas , Neoplasias Pulmonares , Adenocarcinoma/diagnóstico , Adenocarcinoma/genética , Adenocarcinoma/patología , Adenocarcinoma del Pulmón/genética , Carcinoma de Pulmón de Células no Pequeñas/genética , Humanos , Pulmón/patología , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/genética , Neoplasias Pulmonares/patología , Masculino , Persona de Mediana Edad , Mutación Missense , Pronóstico , Proteínas Proto-Oncogénicas/genética , Proteínas Proto-Oncogénicas p21(ras)/genética , Proteínas ras/genética
5.
Pathologica ; 114(5): 391-394, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36305027

RESUMEN

Pulmonary mixed squamous and glandular papillomas (MSCGPs) are rare, benign neoplasms with peculiar clinical and histological features. However, on occasion, they can present certain characteristics that overlap with other neoplasms including carcinomas. Recognising these features is hence important for treatment purposes. Molecular studies can sometimes help in further characterisation, although they should not guide the diagnosis which ultimately relies on morphology.We report a challenging case of MSCGP with unusual features, received during intraoperative consultation. We highlight the subtle morphological features to help avoid overcalling a benign lesion as malignant.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias Pulmonares , Papiloma , Humanos , Papiloma/diagnóstico , Papiloma/cirugía , Neoplasias Pulmonares/patología , Carcinoma de Células Escamosas/diagnóstico
6.
Pediatr Allergy Immunol ; 32(3): 479-488, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33207014

RESUMEN

BACKGROUND: Vitamin D supplementations for asthma control had shown inconsistent results. We aimed to study efficacy and safety of vitamin D supplementation in asthmatic children who were vitamin D deficient. METHODS: This double-blind, randomized controlled trial enrolled asthmatic children of 4-12 years of age who had 25-hydroxyvitamin D [25(OH)D] levels <20 ng/mL. The participants were randomized to receive either vitamin D orally 1000 IU/d for 9 months or similar-looking placebo. The primary outcomes were the proportion of children having the Childhood Asthma Control Test (CACT) score of ≥20 at the end of the treatment and adverse effects. RESULTS: The trial included 250 children (125 in each group) with a mean age of 8.1 ± 2.3 years and 180 boys. The baseline parameters were similar between the groups, including CACT score (21.7 ± 4.2 vs 21.9 ± 3.6, vitamin D vs placebo). At the end of the study, the proportion of asthmatic children who had CACT score ≥ 20 was similar between vitamin D and placebo group (93.6% vs 92.0%, P = .625). The number of exacerbations of asthma and side effect profile was also identical between the groups. 25(OH)D levels increased significantly in the vitamin D group (18.06 ± 7.11 vs 12.03 ± 5.98 ng/mL, P < .001). The results did not change when we did subgroup analysis for children with baseline CACT score < 20 and 25(OH)D levels at the end of the study ≥20 ng/mL. CONCLUSION: Vitamin D supplementation in asthmatic children with vitamin D deficiency did not improve control of asthma.


Asunto(s)
Asma , Deficiencia de Vitamina D , Asma/tratamiento farmacológico , Niño , Colecalciferol , Suplementos Dietéticos , Método Doble Ciego , Humanos , Recién Nacido , Masculino , Vitamina D , Deficiencia de Vitamina D/complicaciones , Deficiencia de Vitamina D/tratamiento farmacológico
7.
Indian J Med Res ; 151(4): 333-341, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-32461397

RESUMEN

Background & objectives: There is limited data on non-alcoholic fatty liver disease (NAFLD) among Indian women with polycystic ovary syndrome (PCOS), and there are no data on the utility of fibroscan in its assessment. The objective of this study was thus to investigate the frequency of hepatic steatosis in young women with PCOS and evaluate the utility of transient elastography (TE) in its assessment. Methods: Seventy women diagnosed with PCOS and 60 apparently healthy women (controls) were enrolled in this pilot study. These women were evaluated for clinical, biochemical and hormonal parameters, transabdominal ultrasonography, dual-energy X-ray absorptiometry and fibroscan assessing liver stiffness measure (LSM) and controlled attenuation parameter (CAP). Other indices such as liver fat score (LFS), lipid accumulation product (LAP), fibrosis-4 (FIB-4) and aspartate aminotransferase to platelet ratio index, hepatic steatosis index (HIS) scores were also calculated. The main outcome measures were the presence of NAFLD in women with PCOS and its correlation with CAP and LSM on TE. Results: Women with PCOS had higher frequency (38.57 vs. 6.67%) of hepatic steatosis than control women as determined by abdominal sonography. The aminotransferases were higher in PCOS group (14.28 vs. 1.7%, P=0.03) even after adjusting for body mass index implying higher non-alcoholic steatohepatitis among young PCOS patients. PCOS women had significantly higher CAP on TE compared to controls (210 vs. 196). CAP had a significant correlation with LFS, LAP and HIS. Interpretation & conclusions: NAFLD is common in young women with PCOS, and fibroscan using TE may be considered as a promising non-invasive diagnostic modality in its early detection.


Asunto(s)
Diagnóstico por Imagen de Elasticidad , Enfermedad del Hígado Graso no Alcohólico , Síndrome del Ovario Poliquístico , Femenino , Humanos , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/diagnóstico por imagen , Proyectos Piloto , Síndrome del Ovario Poliquístico/complicaciones , Síndrome del Ovario Poliquístico/diagnóstico por imagen , Síndrome del Ovario Poliquístico/epidemiología , Ultrasonografía
8.
Gynecol Endocrinol ; 36(4): 308-312, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-31701799

RESUMEN

The aim of this study was to compare the efficacy and safety of adding metformin or spironolactone to rosiglitazone in women with polycystic ovary syndrome (PCOS). This is a prospective non-randomized study in a tertiary care with at in a tertiary care endocrine clinic. Women (n = 138) diagnosed with PCOS on the basis of Rotterdam criteria 2003 were categorized into three groups on the basis of drug intake as - rosiglitazone (R), rosiglitazone with spironolactone (R + S), and rosiglitazone with metformin (R + M). Clinical, biochemical, hormonal, and insulin sensitivity parameters were assessed at baseline and after six months of follow up. There was a significant improvement in number of menstrual cycles per year and Ferriman Gallwey (FG) score in all three groups after 6 months. Plasma insulin (0, 2 h), HOMA-IR and serum total testosterone levels decreased after six months in all the three groups. The inter group comparison showed higher efficacy of R + S in improving hyperandrogenism whereas R + M was most effective in decreasing body weight and plasma insulin levels compared to R and R + S (p<.05). Treatment of women with PCOS using rosiglitazone alone and in combination with spironolactone or metformin is safe and efficacious with limited adverse events however randomized trials with longer duration of follow up are warranted.


Asunto(s)
Metformina/administración & dosificación , Síndrome del Ovario Poliquístico/tratamiento farmacológico , Rosiglitazona/administración & dosificación , Espironolactona/administración & dosificación , Adolescente , Adulto , Sinergismo Farmacológico , Quimioterapia Combinada , Femenino , Humanos , Hiperandrogenismo/tratamiento farmacológico , Hiperandrogenismo/etiología , India , Resistencia a la Insulina/fisiología , Síndrome del Ovario Poliquístico/complicaciones , Resultado del Tratamiento , Adulto Joven
9.
J Indian Assoc Pediatr Surg ; 25(6): 352-356, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33487936

RESUMEN

BACKGROUND: Children with biliary atresia (BA) have impaired metabolism of trace elements (TEs) (i.e., zinc, copper, selenium, and manganese), leading to an alteration in the serum levels. However, this alteration in serum level has any correlation with liver histopathological changes is not yet clear. MATERIALS AND METHODS: This prospective study attempts to evaluate the preoperative serum levels of TE in comparison to controls and its correlation with liver histology in children with BA. Kasai portoenterostomy (KPE) and liver biopsy were performed in all cases. On liver histology, various parameters assessed and were graded according to predefined criteria. Serum levels of TE were determined again 12 weeks post-KPE and compared with the preoperative levels. RESULTS: Mean(±standard deviation [SD]) preoperative serum Zn, Cu, Se, and Mn levels (in µg/dl) in BA patients were 41.6 ± 12.8, 130.6 ± 12.8, 50.0 ± 10.0, and 32.0 ± 20.0, respectively; in controls, these levels were 77.9 ± 13.7, 133.7 ± 13.7, 87.0 ± 13.0, and 8.0 ± 5.5, respectively. Mean postoperative levels in all patients were 68.5 ± 19.0, 91.7 ± 19.0, 79.0 ± 19.0, and 28.0 ± 12.0, respectively. Mean(±SD) postoperative serum Zn, Cu, Se, and Mn levels in BA patients with bile excretion were 73.8 ± 14.9, 83.6 ± 13.8, 85.0 ± 15.0, and 26.0 ± 10.0, respectively, whereas in those with no bile excretion, they were 40.6 ± 12.8, 134.0 ± 23.0, 49.0 ± 11.0, and 44.0 ± 16.0, respectively. In liver histology, specific parameters showed correlation with high Mn and low Zn levels. CONCLUSION: Serum TE levels are altered in children with BA and the establishment of successful biliary drainage may change the subsequent postoperative serum concentration. Serum Zn and Mn levels can signify specific histopathological liver changes and the extent of liver damage.

10.
J Indian Assoc Pediatr Surg ; 25(3): 147-150, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32581441

RESUMEN

BACKGROUND: Nutritional depletion and growth stunting are present in patients with biliary atresia; "normal" nutrient and vitamin supplementation fail to correct these deficiencies. Children with this condition form the largest group for possible liver transplantation in the future; hence, stress should be laid on close attention to their nutrition. METHODS: Twenty-five patients with biliary atresia as cases and 25 age-matched children as controls were enrolled in the study from November 2010 to June 2012. Preoperatively, patients underwent standard investigations and anthropometric measurement (weight, height, and head circumference) assessment. Nutritional status (assessed with standard growth chart) was compared with control population, and children were divided into poor nutritional status and good nutritional status. Kasai's portoenterostomy was performed in all patients, and comparison was done between preoperative nutritional status with postoperative status of children and also between hepatic iminodiacetic acid (HIDA) scan-positive (patent bilioenteric pathway) children with HIDA scan-negative children. Postoperatively, after 12 weeks, the same anthropometric measurements were taken again, growth velocity (GV) was assessed, and children were divided into poor, average, and good GV. RESULTS: Nutritional status of children with biliary atresia was significantly poor than that of control group. Postoperatively, children had better nutritional status than preoperative nutritional status, especially in HIDA scan-positive children. GV was also significantly better in those children in whom postoperative HIDA scan was positive. CONCLUSION: Children with biliary atresia have poor nutritional status in comparison to normal population and require multifaceted approach to achieve adequate nutrition. Establishment of a patent bilioenteric pathway in these children improves their nutritional status and GV.

11.
Diabetologia ; 62(8): 1357-1365, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-31104096

RESUMEN

AIMS/HYPOTHESIS: The aim of this study was to investigate the concordance of dysglycaemia (prediabetes or diabetes) and cardiometabolic traits between women with a history of gestational diabetes mellitus (GDM) and their spouses. METHODS: Using hospital medical records, women with GDM (diagnosed between 2012 and 2016) and their spouses were invited to participate in the study and to attend a scheduled hospital visit in a fasting state. Sociodemographic, anthropometric and medical data were collected, and a 75 g OGTT with serum insulin estimation, HbA1c measurement and fasting lipid profile were performed at the visit. Prediabetes and diabetes were defined using ADA criteria and the metabolic syndrome was defined using IDF criteria. RESULTS: A total of 214 couples participated in the study. Women were tested at a mean ± SD age of 32.4 ± 4.6 years and median (quartile [q]25-q75) of 19.5 (11-44) months following the index delivery, while men were tested at a mean ± SD age of 36.4 ± 5.4 years. A total of 72 (33.6%) couples showed concordance for dysglycaemia, while 99 (46.3%) and 51 (23.8%) couples were concordant for overweight/obesity and the metabolic syndrome, respectively. A total of 146 (68.2%) couples showed concordance for any of the above three factors. The presence of dysglycaemia in one partner was associated with an increased risk of dysglycaemia in the other partner (OR 1.80 [95% CI 1.04, 3.11]). Similarly, being overweight/obese (OR 2.19 [95% CI 1.22, 3.93]) and presence of the metabolic syndrome (OR 2.01 [95% CI 1.16, 3.50]) in one partner was associated with an increased risk of these conditions in the other partner. Both women and men were more likely to have dysglycaemia if they had a partner with dysglycaemia. Women with a partner with dysglycaemia had a significantly higher BMI, waist circumference and diastolic BP, and a significantly higher probability of low HDL-cholesterol (<1.29 mmol/l) and the metabolic syndrome compared with women with a normoglycaemic partner. No such differences were observed for men with or without a partner with dysglycaemia. CONCLUSIONS/INTERPRETATION: The high degree of spousal concordance found in this study suggests social clustering of glycaemic and cardiometabolic traits among biologically unrelated individuals. This provides us with an opportunity to target the behavioural interventions at the level of the 'married couple', which may be a novel and cost-effective method of combating the current diabetes epidemic.


Asunto(s)
Diabetes Mellitus/sangre , Diabetes Gestacional/sangre , Salud de la Familia , Estado Prediabético/sangre , Esposos , Adulto , Antropometría , Glucemia/metabolismo , Enfermedades Cardiovasculares/epidemiología , Sistema Cardiovascular , Análisis Costo-Beneficio , Estudios Transversales , Femenino , Prueba de Tolerancia a la Glucosa , Humanos , India/epidemiología , Insulina/sangre , Masculino , Síndrome Metabólico/epidemiología , Embarazo , Factores de Riesgo , Clase Social
12.
Horm Metab Res ; 51(5): 309-314, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31071735

RESUMEN

Atherosclerotic cardiovascular events are one of the common causes of mortality in patients with Cushing's syndrome (CS). Atherogenic dyslipidemia is more common among South Asian Indians as compared to other ethnicities and is likely to worsen among patients with CS. This retrospective study was done over 5 years at a single institute to evaluate the pattern of lipid abnormalities in subjects with CS and the changes in lipid parameters after surgical control of hypercortisolemia. The study was done in two parts. In the first part, records of patients with CS diagnosed over 3 years were retrospectively reviewed. Hormonal and metabolic parameters including fasting plasma glucose (FPG), post prandial plasma glucose (PPPG), HbA1c, serum lipids, serum cortisol and plasma ACTH were recorded. In the second part, lipid parameters were rechecked among patients who underwent surgery and a median follow up of 4±2 months after remission. Out of the 126 patients diagnosed with endogenous CS over 3 years, 100 patients were eligible for inclusion in the study. At baseline, sixty five (65%) patients had dyslipidemia as defined by the NCEP-ATPIII criteria. 47 out of 63 (74.6%) subjects achieved remission after surgical management of CS. 32 (68.1%) of these patients had dyslipidemia prior to surgery. After excluding 1 death, 26 of 46 (56.5%) subjects had dyslipidemia after the follow up period. Lipid abnormalities are common among South Asian Indian subjects with endogenous CS and the pattern persists in most of them, 3 months after surgical correction of hypercortisolism.


Asunto(s)
Síndrome de Cushing/sangre , Síndrome de Cushing/cirugía , Lípidos/sangre , Adulto , Femenino , Estudios de Seguimiento , Humanos , India , Masculino , Inducción de Remisión , Factores de Tiempo
13.
Br J Nutr ; 121(5): 538-548, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30843501

RESUMEN

In India, there is a lack of information about the adequate daily dose of vitamin D3 supplementation in school children. Hence, we undertook this study to evaluate the adequacy and efficacy of different doses of vitamin D3 in schoolchildren. A total of 1008 vitamin D-deficient (VDD) children, aged 6-16 years with serum 25-hydroxyvitamin D (25(OH)D) levels <50nmol/l, were cluster randomised into three groups (A-344, B-341 and C-232) for supplementation (600, 1000 and 2000 IU daily) of vitamin D3 under supervision for 6 months. Of the 1008 subjects who completed the study, 938 (93 %) were compliant. Baseline and post-supplementation fasting blood and urine samples were evaluated for Ca, phosphates, alkaline phosphatase, 25(OH)D and parathormone and urine Ca:creatinine ratio. The mean age of the subjects was 11·7 (sd 2·4) years, and the overall mean baseline serum 25(OH)D level was 24·3 (SD 9·5)nmol/l. Post-supplementation rise in serum 25(OH)D in compliant group was maximum with 2000 IU (70·0 (SD 30·0)nmol/l), followed by 1000 IU (46·8 (SD 22·5)nmol/l) and 600 IU (36·5 (SD 18·5)nmol/l), and serum 25(OH)D levels of ≥50nmol/l were achieved in 71·5, 81·8 and 92·9 % by groups A, B and C, respectively. Secondary hyperparathyroidism decreased from 31·7 to 8·4 % post-supplementation. Two participants developed hypercalciuria, but none developed hypercalcaemia. Children with VDD benefit maximum with the daily supplementation of 2000 IU of vitamin D3. Whether recommendations of 400 IU/d by Indian Council of Medical Research or 600 IU by Indian Academy of Pediatrics or Institute of Medicine would suffice to achieve vitamin D sufficiency in children with VDD remains debatable.


Asunto(s)
Colecalciferol/administración & dosificación , Suplementos Dietéticos , Deficiencia de Vitamina D/terapia , Vitaminas/administración & dosificación , Adolescente , Fosfatasa Alcalina/sangre , Calcio/sangre , Calcio/orina , Niño , Creatinina/orina , Femenino , Humanos , Hiperparatiroidismo Secundario/sangre , Hiperparatiroidismo Secundario/etiología , Hiperparatiroidismo Secundario/orina , India , Masculino , Hormona Paratiroidea/sangre , Fosfatos/sangre , Estudios Prospectivos , Método Simple Ciego , Estudiantes , Vitamina D/análogos & derivados , Vitamina D/sangre , Deficiencia de Vitamina D/sangre , Deficiencia de Vitamina D/orina
14.
Paediatr Anaesth ; 26(6): 599-607, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27083135

RESUMEN

BACKGROUND: Glucose requirement in neonates during surgery and the impact of glucose supplementation on neonatal metabolism remain unclear. AIM: This study was designed to identify an appropriate perioperative fluid regimen in neonates which maintains carbohydrate and lipid homeostasis. METHODS: Forty-five neonates undergoing primary repair of a trachea-esophageal fistula were randomly allocated into three groups. During surgery, the neonates received either 1% dextrose in Ringer lactate (RL) (group D1) at 10 ml·kg(-1) ·h(-1) , or 2% dextrose in RL (group D2) at 10 ml·kg(-1) ·h(-1) , or 10% dextrose in N/5 saline at 4 ml·kg(-1) ·h(-1) and replacement fluid with 6 ml·kg(-1) ·h(-1) of RL (group D4). Glucose homeostasis, electrolyte balance, acid-base status, and endocrine and metabolic parameters were compared among the groups during the perioperative period. RESULTS: Blood glucose increased in all the three groups at the end of surgery, with no significant difference in blood glucose and incidence of hyperglycemia (BG > 150 mg·dl(-1) ) among them. At 24 h after surgery, blood glucose and incidence of hyperglycemia was significantly higher in Group D1 compared to Group D4. Base excess, bicarbonate, lactate, and pH showed a significant fall in Group D1. There was no significant difference in serum-free fatty acids, serum beta-hydroxy butyrate, and serum cortisol in three groups. At the end of surgery, serum insulin was significantly lower and glucagon : insulin (G : I) ratio was higher in Group D1 compared to Group D4. CONCLUSIONS: All three solutions, when infused at 10 ml·kg(-1) ·h(-1) , are equally effective in maintaining glucose homeostasis, but 1% dextrose-containing fluid promotes catabolism, insulin resistance, rebound hyperglycemia, and acidosis. Therefore, 2-4% dextrose-containing fluids is more suitable compared to 1% dextrose-containing fluids for use during major neonatal surgeries requiring average fluid infusion rate of 10 ml·kg(-1) ·h(-1) .


Asunto(s)
Fluidoterapia/métodos , Glucosa/administración & dosificación , Cuidados Intraoperatorios/métodos , Glucemia/efectos de los fármacos , Relación Dosis-Respuesta a Droga , Femenino , Homeostasis/efectos de los fármacos , Humanos , Hiperglucemia/prevención & control , Recién Nacido , Soluciones Isotónicas/administración & dosificación , Masculino , Lactato de Ringer
15.
Nanotechnology ; 26(49): 495701, 2015 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-26572253

RESUMEN

Graphene, the thinnest possible anticorrosion and gas-permeation barrier, is poised to transform the protective coatings industry for a variety of surface applications. In this work, we have studied the structural changes of graphene when the underlying copper surface undergoes oxidation upon heating. Single-layer graphene directly grown on a copper surface by chemical vapour deposition was annealed under ambient atmosphere conditions up to 400 °C. The onset temperature of the surface oxidation of copper is found to be higher for graphene-coated foils. Parallel arrays of graphene nanoripples are a ubiquitous feature of pristine graphene on copper, and we demonstrate that these form crucial sites for the onset of the oxidation of copper, particularly for ∼0.3-0.4 µm ripple widths. In these regions, the oxidation proceeds along the length of the nanoripples, resulting in the formation of parallel stripes of oxidized copper regions. We demonstrate from temperature-dependent Raman spectroscopy that the primary defect formation process in graphene involves boundary-type defects rather than vacancy or sp(3)-type defects. This observation is consistent with a mechanical tearing process that splits graphene into small polycrystalline domains. The size of these is estimated to be sub-50 nm.

16.
Indian J Med Res ; 140(4): 531-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25488448

RESUMEN

BACKGROUND & OBJECTIVES: Deficiency of vitamin D, an immunomodulator agent, is associated with increased susceptibility to tuberculosis in adults, but only limited studies are available in the paediatric age group, especially regarding association of vitamin D with type and outcome of tuberculosis. We conducted this study to determine the baseline 25-hydroxy vitamin D levels in children suffering from intrathoracic tuberculosis and its association with type and outcome of tuberculosis. METHODS: Children with intrathoracic tuberculosis, diagnosed on the basis of clinico-radiological criteria, were enrolled as part of a randomized controlled trial on micronutrient supplementation in paediatric tuberculosis patients. Levels of 25-hydroxy vitamin D were measured in serum samples collected prior to starting antitubercular therapy by chemiluminescent immunoassay technology. RESULTS: Two hundred sixty six children (mean age of 106.9 ± 43.7 months; 57.1% girls) were enrolled. Chest X-ray was suggestive of primary pulmonary complex, progressive disease and pleural effusion in 81 (30.5%), 149 (56%) and 36 (13.5%) subjects, respectively. Median serum 25-hydroxy vitamin D level was 8 ng/ml (IQR 5, 12). One hundred and eighty six (69.9%) children were vitamin D deficient (serum 25-hydroxy vitamin D <12 ng/ml), 55 (20.7%) were insufficient (12 to <20 ng/ml) and 25 (9.4%) were vitamin D sufficient (≥ 20 ng/ml). Levels of 25-hydroxy vitamin D were similar in all three types of intrathoracic tuberculosis, and in microbiologically confirmed and probable cases. Levels of 25-hydroxy vitamin D did not significantly affect outcome of the disease. Children who were deficient or insufficient were less likely to convert (become smear/culture negative) at two months as compared to those who were 25-hydroxy vitamin D sufficient ( p <0.05). INTERPRETATION & CONCLUSIONS: Majority of Indian children with newly diagnosed intrathoracic tuberculosis were deficient in vitamin D. Type of disease or outcome was not affected by 25-hydroxy vitamin D levels in these children. However, children who did not demonstrate sputum conversion after intensive phase of antitubercular therapy had lower baseline 25-hydroxy vitamin D levels as compared to those who did.


Asunto(s)
Tuberculosis Pulmonar/sangre , Deficiencia de Vitamina D/sangre , Vitamina D/sangre , Adolescente , Adulto , Antituberculosos/administración & dosificación , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino , Esputo/efectos de los fármacos , Esputo/metabolismo , Tuberculosis Pulmonar/tratamiento farmacológico , Tuberculosis Pulmonar/patología , Deficiencia de Vitamina D/patología
17.
Eur J Cardiovasc Nurs ; 23(2): 206-211, 2024 Mar 12.
Artículo en Inglés | MEDLINE | ID: mdl-38195931

RESUMEN

The lack of sex-specific variables, such as reproductive system history (RSH), in cardiovascular research studies is a missed opportunity to address the cardiovascular disease (CVD) burden, especially among women who face sex-specific risks of developing CVD. Collecting RSH data from women enrolled in research studies is an important step towards improving women's cardiovascular health. In this paper, we describe two approaches to collecting RSH in CVD research: extracting RSH from the medical record and participant self-report of RSH. We provide specific examples from our own research and address common data management and statistical analysis problems when dealing with RSH data in research.


Asunto(s)
Enfermedades Cardiovasculares , Enfermería Cardiovascular , Investigación en Enfermería , Masculino , Femenino , Humanos , Salud de la Mujer , Genitales , Salud Reproductiva
18.
Arterioscler Thromb Vasc Biol ; 32(8): 1936-42, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22723436

RESUMEN

OBJECTIVE: Sex differences in cerebral ischemic injury are, in part, attributable to the differences in cerebrovascular perfusion. We determined whether the brain microvascular endothelial cells (ECs) isolated from the female brain are more resistant to ischemic injury compared with male ECs, and whether the difference is attributable to lower expression of soluble epoxide hydrolase and higher levels of vasoprotective epoxyeicosatrienoic acids (EETs). We also determined whether protection by EETs is linked to the inhibition of rho-kinase (ROCK). METHODS AND RESULTS: EC ischemic damage was measured after oxygen-glucose deprivation (OGD) using propidium iodide (PI) and cleaved caspase-3 labeling. Expression of soluble epoxide hydrolase was determined by quantitative polymerase chain reaction and immunocytochemistry, EETs levels by liquid chromatography-tandem mass spectrometry, and ROCK activity by ELISA. EC damage was higher in males compared with females, which correlated with higher soluble epoxide hydrolase mRNA, stronger immunoreactivity, and lower EETs compared with female ECs. Inhibition of soluble epoxide hydrolase abolished the sex difference in EC damage. ROCK activity was higher in male versus female ECs after OGD, and sex differences in EC damage and ROCK activity were abolished by 14,15-EET and ROCK inhibition. CONCLUSIONS: Sex differences in ischemic brain injury are, in part, attributable to differences in EET-mediated inhibition of EC ROCK activation after ischemia.


Asunto(s)
Isquemia Encefálica/etiología , Células Endoteliales/fisiología , Epóxido Hidrolasas/fisiología , Caracteres Sexuales , Ácido 8,11,14-Eicosatrienoico/análogos & derivados , Ácido 8,11,14-Eicosatrienoico/análisis , Ácido 8,11,14-Eicosatrienoico/metabolismo , Amidas/farmacología , Animales , Isquemia Encefálica/enzimología , Supervivencia Celular , Células Cultivadas , Epóxido Hidrolasas/análisis , Epóxido Hidrolasas/inmunología , Femenino , Masculino , Ratones , Ratones Endogámicos C57BL , Piridinas/farmacología , Solubilidad , Quinasas Asociadas a rho/metabolismo
19.
Gynecol Endocrinol ; 29(12): 1045-7, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23957781

RESUMEN

Polycystic ovary syndrome (PCOS) is the most common cause for androgen excess in women. It is associated with wide variety of metabolic disorders. The present study assessed morning plasma cortisol in women with PCOS. One hundred and ninety seven cases and 55 controls were enrolled for this study. The mean age of patients and controls were 23 ± 5.6 years and 25 ± 4.3 years. One hundred twelve (56%) women with PCOS had BMI >25. Serum cortisol levels were significantly higher in lean PCOS women compared to controls (13.4 ± 5.1 versus 11.3 ± 4.5, p < 0.01) and over-weight PCOS women group (13.4 ± 5.1 versus 9.3 ± 3.2, p < 0.01). There was a trend for less acne and hirsutism with increase in BMI. Morning plasma cortisol was lower among obese women with PCOS. Morning plasma cortisol correlated negatively with BMI in PCOS women with normal glucose tolerance.


Asunto(s)
Hidrocortisona/sangre , Obesidad/sangre , Obesidad/complicaciones , Síndrome del Ovario Poliquístico/sangre , Síndrome del Ovario Poliquístico/complicaciones , Acné Vulgar/complicaciones , Acné Vulgar/epidemiología , Adolescente , Adulto , Glucemia/análisis , Índice de Masa Corporal , Ritmo Circadiano , Ayuno , Femenino , Prueba de Tolerancia a la Glucosa , Hirsutismo/complicaciones , Hirsutismo/epidemiología , Humanos , Testosterona/sangre , Adulto Joven
20.
J Pediatr Endocrinol Metab ; 26(5-6): 515-23, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23509211

RESUMEN

AIM: Vitamin D deficiency (VDD) among adolescents is a major health problem in India. The aim of this study was to assess the efficacy of therapeutic/loading doses of vitamin D supplementation on serum 25-hydroxy vitamin D (25OHD) levels in vitamin D deficient adolescents. METHODS: A total of 482 out of the 511 subjects recruited for the study were divided into three groups, each group receiving 60,000 IU of vitamin D3 weekly for 4, 6 and 8 weeks followed by 600 IU daily for 12 weeks, respectively. Clinical evaluation was followed by estimation of biochemical markers and serum 25OHD levels. RESULTS: VDD was observed in 94.8% of adolescents. All three vitamin D loading doses were equally efficacious in achieving vitamin D sufficiency >75 nmol/L (>30 ng/mL) in more than 90% subjects in the three groups. Mean 25OHD levels in groups 2 and 3 following maintenance therapy were 67.5±16.5 nmol/L (27.0±6.6 ng/mL) and 70.0±21.8 nmol/L (28.0±8.7 ng/mL), respectively. CONCLUSION: Supplementing 60,000 IU of vitamin D3 per week for 4-8 weeks, followed by 600 IU daily through fortified milk, is an effective strategy for achieving vitamin D sufficiency in Indian adolescents.


Asunto(s)
Deficiencia de Vitamina D/sangre , Deficiencia de Vitamina D/tratamiento farmacológico , Vitamina D/análogos & derivados , Vitamina D/administración & dosificación , Vitaminas/administración & dosificación , Adolescente , Animales , Índice de Masa Corporal , Niño , Relación Dosis-Respuesta a Droga , Femenino , Alimentos Fortificados , Humanos , India , Masculino , Leche , Estudios Prospectivos , Vitamina D/sangre
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