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1.
J Neurosci ; 42(19): 4016-4025, 2022 05 11.
Artículo en Inglés | MEDLINE | ID: mdl-35428698

RESUMEN

Cognitive deficits are a major biomedical challenge-and engagement of the brain in stimulating tasks improves cognition in aged individuals (Wilson et al., 2002; Gates et al., 2011) and rodents (Aidil-Carvalho et al., 2017), through unknown mechanisms. Whether cognitive stimulation alters specific metabolic pathways in the brain is unknown. Understanding which metabolic processes are involved in cognitive stimulation is important because it could lead to pharmacologic intervention that promotes biological effects of a beneficial behavior, toward the goal of effective medical treatments for cognitive deficits. Here we show using male mice that cognitive stimulation induced metabolic remodeling of the mouse hippocampus, and that pharmacologic treatment with the longevity hormone α-klotho (KL), mediated by its KL1 domain, partially mimicked this alteration. The shared, metabolic signature shared between cognitive stimulation and treatment with KL or KL1 closely correlated with individual mouse cognitive performance, indicating a link between metabolite levels and learning and memory. Importantly, the treatment of mice with KL1, an endogenous circulating factor that more closely mimicked cognitive stimulation than KL, acutely increased synaptic plasticity, a substrate of cognition. KL1 also improved cognition, itself, in young mice and countered deficits in old mice. Our data show that treatments or interventions mimicking the hippocampal metabolome of cognitive stimulation can enhance brain functions. Further, we identify the specific domain by which klotho promotes brain functions, through KL1, a metabolic mimic of cognitive stimulation.SIGNIFICANCE STATEMENT Cognitive deficits are a major biomedical challenge without truly effective pharmacologic treatments. Engaging the brain through cognitive tasks benefits cognition. Mimicking the effects of such beneficial behaviors through pharmacological treatment represents a highly valuable medical approach to treating cognitive deficits. We demonstrate that brain engagement through cognitive stimulation induces metabolic remodeling of the hippocampus that was acutely recapitulated by the longevity factor klotho, mediated by its KL1 domain. Treatment with KL1, a close mimic of cognitive stimulation, enhanced cognition and countered cognitive aging. Our findings shed light on how cognition metabolically alters the brain and provide a plausible therapeutic intervention for mimicking these alterations that, in turn, improves cognition in the young and aging brain.


Asunto(s)
Glucuronidasa , Longevidad , Envejecimiento , Animales , Cognición/fisiología , Glucuronidasa/química , Glucuronidasa/metabolismo , Hidrolasas/metabolismo , Proteínas Klotho , Masculino , Metaboloma , Ratones
2.
BMC Gastroenterol ; 22(1): 178, 2022 Apr 09.
Artículo en Inglés | MEDLINE | ID: mdl-35397529

RESUMEN

AIM: Gastrointestinal malignant melanoma is a rare mucosal melanoma (MM). Other MM include the respiratory and the genitourinary tract. All mucosal melanomas have a poor prognosis when compared to cutaneous melanomas. Ano-rectal melanomas are by far the most common and most studied gastrointestinal MM. Large-scale clinical data is lacking due to the rarity of the disease. We aim to analyze epidemiology and survival of the Gastrointestinal (G.I.) MM over 45 years using a national database. METHODS: The Surveillance, Epidemiology and End Results (SEER) database was queried to identify patients with biopsy-proven G.I. Melanomas. We selected tumor site, intervention, and survival information for oncology codes as per the international classification of diseases. Survival analysis was performed using the SPSS v 27 ® IBM software. RESULTS: Of the 1105 biopsy-proven confirmed cases of primary G.I. melanoma's, 191 (17.3%) received chemotherapy (C.T.), 202 (18.3%) received radiotherapy (R.T.), 63 (5.7%) received both C.T and R.T., while 684 (61.9%) of the population received surgery alone or combined with C.T. and/or R.T. Statistically significant improvement in survival was noted in all treatment strategies that utilized surgery and also when site-specific MM cohorts underwent a surgical approach with or without C.T and/or R.T. CONCLUSION: This is the most extensive study reporting epidemiological and survival data of treatment strategy outcomes of primary G.I. mucosal melanoma elucidating best overall survival with a management strategy involving surgical intervention.


Asunto(s)
Neoplasias Gastrointestinales , Melanoma , Neoplasias Cutáneas , Bases de Datos Factuales , Neoplasias Gastrointestinales/epidemiología , Neoplasias Gastrointestinales/patología , Neoplasias Gastrointestinales/terapia , Humanos , Melanoma/epidemiología , Melanoma/terapia , Membrana Mucosa/patología , Análisis de Supervivencia
3.
J Thromb Thrombolysis ; 54(4): 630-638, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-35876942

RESUMEN

A substantial proportion of patients with malignancy develop pulmonary embolism (PE), which significantly worsens the prognosis and ranks as one of the leading causes of mortality in these patients. This retrospective study aimed to examine prognosis of PE in 17 different types of malignancies. All hospitalizations for a primary diagnosis of PE, were identified from the National Inpatient Sample from 2016 to 2018 and divided into those with and without malignancies. Propensity score matching was performed with malignancy as the dependent variable and 23 clinically relevant covariates. Malignancy was stratified into 17 different types of cancer, for which the odds of in-hospital mortality were calculated. After propensity score matching, 82,970 hospitalizations for PE each were allocated into those with and without malignancy groups. PE in all types of malignancies had significantly higher odds of in-hospital mortality compared to PE without malignancy (OR 2.27, 95% CI 2.03-2.54). When stratified to types, esophageal cancer (OR 4.05, 95% CI 2.77-5.92) was associated with the highest odds of in-hospital mortality, followed by gastric (OR 3.41, 95% CI 2.25-5.16) and ovarian cancer (OR 2.95, 95% CI 2.12-4.13). On sensitivity analysis, only PE in esophageal and lung cancer was associated with higher odds of in-hospital mortality compared to PE in all other malignancies combined. Hospitalizations for PE in patients with malignancy were associated with higher odds of in-hospital mortality than those without malignancy. Esophageal cancer had the highest odds of in-hospital mortality, followed by gastric, ovarian, and lung cancer.


Asunto(s)
Neoplasias Esofágicas , Neoplasias Pulmonares , Embolia Pulmonar , Humanos , Estudios Retrospectivos , Pacientes Internos , Pronóstico , Mortalidad Hospitalaria , Hospitales , Neoplasias Pulmonares/complicaciones , Neoplasias Esofágicas/complicaciones , Factores de Riesgo
4.
J Contemp Dent Pract ; 23(3): 337-342, 2022 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-35781440

RESUMEN

AIM: To compare different combinations of alendronate, platelet-rich fibrin (PRF), and hydroxyapatite in bone regeneration in endodontic surgeries using cone-beam computed tomography (CBCT). METHODS AND SUBJECTS: During this study, 28 patients were selected who were found to have pathology in the periapical area in the anterior region, The study subjects were categorized into four categories, each consisting of seven subjects, Category one-there was no placement of any material; category two-PRF; category three-hydroxyapatite along with PRF; category four-alendronate along with PRF, Root canal treatment followed by endodontic surgery in each patient was carried out, Volumetric analysis of the lesions was carried out before surgery and 12 months after surgery using CBCT, Analysis of variance (ANOVA) test and Tukey post-hoc test were used for statistical analysis. RESULTS: There was a maximum change in the volume of lesions in the study subjects in which PRF was used along with hydroxyapatite in comparison to other combination of materials, There was no significant difference when PRF was placed along with alendronate in comparison to study subjects when PRF was placed alone, The difference was not significant when PRF was placed in defects of bone in comparison to study subjects when no materials were placed in the defects of bone. CONCLUSION: It can be concluded from the current research that PRF along with hydroxyapatite is a better option for the healing of defects of bone in surgeries performed in the area around the root apex in endodontic patients, But further studies should be carried out with a large sample size and for a longer duration. CLINICAL SIGNIFICANCE: It is a very important consideration that there should be healing of the lesion after surgery around the root apex by actual bone regeneration, The healing of the larger lesions does not take place easily as compared with the lesions having a small size, This is because there is healing by secondary intention where there is formation of scar instead of actual healing by formation of bone, There are several methods by which proper bone regeneration can be obtained.


Asunto(s)
Fibrina Rica en Plaquetas , Alendronato/uso terapéutico , Regeneración Ósea , Tomografía Computarizada de Haz Cónico , Durapatita/uso terapéutico , Humanos
5.
Mol Biol Rep ; 48(5): 4851-4863, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-34114124

RESUMEN

Global demand for food is increasing day by day due to an increase in population and shrinkage of the arable land area. To meet this increasing demand, there is a need to develop high-yielding varieties that are nutritionally enriched and tolerant against environmental stresses. Various techniques are developed for improving crop quality such as mutagenesis, intergeneric crosses, and translocation breeding. Later, with the development of genetic engineering, genetically modified crops came up with the transgene insertion approach which helps to withstand adverse conditions. The process or product-focused approaches are used for regulating genetically modified crops with their risk analysis on the environment and public health. However, recent advances in gene-editing technologies have led to a new era of plant breeding by developing techniques including site-directed nucleases, zinc finger nucleases, and the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR associated protein 9 (Cas9) that involve precise gene editing without the transfer of foreign genes. But these techniques always remain in debate for their regulation status and public acceptance. The European countries and New Zealand, consider the gene-edited plants under the category of genetically modified organism (GMO) regulation while the USA frees the gene-edited plants from such type of regulations. Considering them under the category of GMO makes a long and complicated approval process to use them, which would decrease their immediate commercial value. There is a need to develop strong regulatory approaches for emerging technologies that expedite crop research and attract people to adopt these new varieties without hesitation.


Asunto(s)
Sistemas CRISPR-Cas , Productos Agrícolas , Regulación Gubernamental , Plantas Modificadas Genéticamente , Repeticiones Palindrómicas Cortas Agrupadas y Regularmente Espaciadas , Productos Agrícolas/economía , Productos Agrícolas/genética , Edición Génica/métodos , Ingeniería Genética/métodos , Genoma de Planta , Fitomejoramiento/métodos , Plantas Modificadas Genéticamente/clasificación , Plantas Modificadas Genéticamente/genética , Transgenes
6.
Agric Syst ; 188: 103035, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36570044

RESUMEN

COVID-19 induced lockdowns have had far reaching impacts on the rural sector, particularly on women farmers. These impacts have been exacerbated by lack of access to reliable and timely agriculture information. Using panel phone survey data from India and Nepal, we study how women's access to agricultural extension was impacted by the lockdowns and its effect on agricultural productivity. We find that women's already low access to formal extension was reduced further, leading to an increased reliance on informal social networks. In both countries, nearly 50% farmers reported negative impacts on productivity due to inaccessibility of information during the lockdown. In India, we find that access to formal extension is mediated by crop type, geographic location and caste identity. We discuss ways in which extension systems in India and Nepal can be made more inclusive and resilient to future crisis, including by adapting group and community-based approaches to post-pandemic best practices.

7.
J Assoc Physicians India ; 68(3): 47-50, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32138484

RESUMEN

OBJECTIVES: Vitamin D deficiency is on a rise globally and so are the maternal complications related to it. This deficiency can be easily detected and corrected by simple oral supplementation for a better health outcome in pregnancy. METHODS: Antenatal women with no history of Vitamin D intake and first antenatal visit at our hospital between 26 to 28 weeks of gestation or after 34 weeks were tested for levels of Vitamin 25(OH)D. Deficient women (< 30 ng/ml) between 26 to 28 weeks were supplemented and tested again before delivery (Group A). Deficient women after 34 weeks who did not receive supplementation before delivery constituted Group B. Maternal outcome was noted and compared in both the groups. RESULTS: Out of the 189 Vitamin D deficient women included in the study; 105(55.5%) were enrolled in Group A and 84 (44.4%) in Group B. 24 (12.7%) women were severely deficient (<4 ng/ml), 134 (70.9%) were deficient (<20 ng/ml) and 28(14.8%) were vitamin D insufficient (20-30 ng/ml). A statistically significant reduction (<0.001) was observed in vitamin D deficient women after supplementation in group A. 5.7% women developed preeclampsia in group A as compared to 28.5% in group B (p<0.0001). Higher (13%) incidence of gestational diabetes mellitus was observed in group B as compared to group A (6.6%) though the difference was not significant. A significantly higher incidence of preterm labor was observed in group B (p=0.007). CONCLUSION: Vitamin D deficiency is correlated with a higher incidence of preeclampsia, gestational diabetes mellitus and preterm birth. Maternal screening in targeted population and its supplementation is recommended to improve maternal outcome.


Asunto(s)
Suplementos Dietéticos , Complicaciones del Embarazo , Resultado del Embarazo/epidemiología , Deficiencia de Vitamina D , Vitamina D , Femenino , Humanos , Recién Nacido , Masculino , Embarazo , Vitaminas
8.
Int Ophthalmol ; 39(3): 721-723, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29426966

RESUMEN

AIM: To report an atypical case of multiple viruses causing canaliculitis. METHODS: Case report of a young female presenting with atypical course of refractory unilateral canaliculitis with complete mid-bicanalicular obstructions. Canalicular scrapings were subjected to immunofluorescence techniques and polymerase chain reactions to identify the viruses. RESULTS: Investigations revealed a canaliculitis of multi-viral etiology; herpes simplex virus and varicella zoster virus. A canalicular curettage followed by topical acyclovir helped in the resolution of canaliculitis. CONCLUSION: An encounter with an atypical canaliculitis with negative bacteriology work up, suboptimal response to routine therapies, and mid-canalicular obstructions should alert the physician to investigate for viral etiology.


Asunto(s)
Canaliculitis/diagnóstico , Infecciones Virales del Ojo/diagnóstico , Antivirales/uso terapéutico , Biopsia , Canaliculitis/tratamiento farmacológico , Canaliculitis/virología , ADN Viral/análisis , Infecciones Virales del Ojo/tratamiento farmacológico , Infecciones Virales del Ojo/virología , Femenino , Humanos , Virus/genética , Adulto Joven
9.
J Neurochem ; 145(3): 188-203, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29168882

RESUMEN

Many neuropsychiatric disorders are thought to result from subtle changes in neural circuit formation. We used human embryonic stem cells and induced pluripotent stem cells (hiPSCs) to model mature, post-mitotic excitatory neurons and examine effects of fibroblast growth factor 2 (FGF2). FGF2 gene expression is known to be altered in brain regions of major depressive disorder (MDD) patients and FGF2 has anti-depressive effects in animal models of depression. We generated stable inducible neurons (siNeurons) conditionally expressing human neurogenin-2 (NEUROG2) to generate a homogenous population of post-mitotic excitatory neurons and study the functional as well as the transcriptional effects of FGF2. Upon induction of NEUROG2 with doxycycline, the vast majority of cells are post-mitotic, and the gene expression profile recapitulates that of excitatory neurons within 6 days. Using hES cell lines that inducibly express NEUROG2 as well as GCaMP6f, we were able to characterize spontaneous calcium activity in these neurons and show that calcium transients increase in the presence of FGF2. The FGF2-responsive genes were determined by RNA-Seq. FGF2-regulated genes previously identified in non-neuronal cell types were up-regulated (EGR1, ETV4, SPRY4, and DUSP6) as a result of chronic FGF2 treatment of siNeurons. Novel neuron-specific genes were also identified that may mediate FGF2-dependent increases in synaptic efficacy including NRXN3, SYT2, and GALR1. Since several of these genes have been implicated in MDD previously, these results will provide the basis for more mechanistic studies of the role of FGF2 in MDD.


Asunto(s)
Factor 2 de Crecimiento de Fibroblastos/metabolismo , Regulación de la Expresión Génica/fisiología , Neuronas/metabolismo , Línea Celular , Trastorno Depresivo Mayor/metabolismo , Trastorno Depresivo Mayor/fisiopatología , Células Madre Embrionarias , Humanos , Células Madre Pluripotentes Inducidas
10.
Ophthalmic Plast Reconstr Surg ; 34(2): e45-e46, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-28990978

RESUMEN

Canaliculops is a noninflammatory ectasia of the canaliculus and so far only 7 histopathologically confirmed cases have been reported worldwide. The authors present a middle aged female with right-sided bicanalicular cystic swellings associated with punctal agenesis. Ultrasound biomicroscopy showed a cystic dilatation of the canaliculus and dacryoendoscopy showed a cavity lined by whitish canalicular mucosa, thrown into numerous irregular folds with a blind medial end. Histopathological examination confirmed the diagnosis of canaliculops. To the best of authors' knowledge, this is the first description of a bicanalicular canaliculops and its dacryoendoscopic findings.


Asunto(s)
Enfermedades del Aparato Lagrimal/patología , Aparato Lagrimal/anomalías , Endoscopía/métodos , Femenino , Humanos , Persona de Mediana Edad
11.
J Minim Invasive Gynecol ; 24(4): 653-658, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28216457

RESUMEN

STUDY OBJECTIVE: To report on the presence and rate of endometriosis in hydatid cysts of Morgagni found at the time of excision surgery for endometriosis and to describe any association of endometriosis in hydatid cysts of Morgagni with preoperative or operative factors. DESIGN: A retrospective cohort study (Canadian Task Force Classification II-2). SETTING: The Center for Endometriosis at Saint Louis University, a tertiary referral center for endometriosis. PATIENTS: Women who underwent optimal excision surgery for suspected endometriosis because of chronic pelvic pain and/or infertility and who also had hydatid cysts of Morgagni removed at the time of surgery when found. INTERVENTIONS: Preoperative and operative data were collected prospectively. MAIN OUTCOME MEASURES: The rate of endometriosis in hydatid cysts of Morgagni. Secondary measures included are the rate of hydatid cysts of Morgagni in patients with pelvic pain or infertility with and without endometriosis in the cysts. RESULTS: The overall prevalence of endometriosis in hydatid cysts of Morgagni was 11.3%. Patients with pelvic pain had a higher rate (although not statistically significant) of hydatid cysts of Morgagni compared with those without pain (21.1% vs 12.5 %, p = .54). Patients with infertility had a higher rate of hydatid cysts of Morgagni compared with those without infertility (38.1% vs 16.7%, p < .001), and there was a higher rate of endometriosis in the hydatid cysts of Morgagni in patients with infertility compared with those without (11.1% vs 0.0%, p < .001). CONCLUSIONS: This study is the first known report of endometriosis found within hydatid cysts of Morgagni. With a rate of 11.3% of cysts of Morgagni having endometriosis within them, this study supports a practice of removing hydatid cysts of Morgagni at the time of surgery in order to achieve optimal excision of endometriosis. The rates of hydatid cysts of Morgagni and of endometriosis found within hydatid cysts of Morgagni were higher in patients with infertility. Further studies are needed to evaluate whether excising cysts of Morgagni affects clinical outcomes.


Asunto(s)
Endometriosis/complicaciones , Quiste Paraovárico/complicaciones , Adulto , Femenino , Humanos , Infertilidad Femenina/etiología , Persona de Mediana Edad , Dolor Pélvico/etiología , Estudios Retrospectivos
12.
J Am Chem Soc ; 136(12): 4565-74, 2014 Mar 26.
Artículo en Inglés | MEDLINE | ID: mdl-24575817

RESUMEN

The marine Streptomyces sp. CNQ-617 produces two diastereomers, marineosins A and B. These are structurally related to alkyl prodiginines, but with a more complex cyclization and an unusual spiroaminal skeleton. We report the identification of the mar biosynthetic gene cluster and demonstrate production of marineosins through heterologous expression in a S. venezuelae host named JND2. The mar cluster shares the same gene organization and has high homology to the genes of the red cluster (which directs the biosynthesis of undecylprodiginine) but contains an additional gene, named marA. Replacement of marA in the JND2 strain leads to the accumulation of premarineosin, which is identical to marineosin with the exception that the middle pyrrole (Ring B) has not been reduced. The final step of the marineosin pathway is thus a MarA catalyzed reduction of this ring. Replacement of marG (a homologue of redG that directs undecylprodiginine cyclization to give streptorubin B) in the JND2 strain leads to the loss of all spiroaminal products and the accumulation of 23-hydroxyundecylprodiginine and a shunt product, 23-ketoundecylprodiginine. MarG thus catalyzes the penultimate step of the marineosin pathway catalyzing conversion of 23-hydroxyundecylprodiginine to premarineosin. The preceding steps of the biosynthetic marineosin pathway likely mirror that in the red-directed biosynthetic process, with the exception of the introduction of the hydroxyl functionality required for spiroaminal formation. This work presents the first experimentally supported scheme for biosynthesis of marineosin and provides a new biologically active molecule, premarineosin.


Asunto(s)
Antimaláricos/metabolismo , Familia de Multigenes , Pirroles/metabolismo , Compuestos de Espiro/metabolismo , Streptomyces/genética , Streptomyces/metabolismo , Antimaláricos/farmacología , Clonación Molecular , Resistencia a Múltiples Medicamentos/efectos de los fármacos , Oxidación-Reducción , Plasmodium falciparum/efectos de los fármacos , Prodigiosina/análogos & derivados , Prodigiosina/metabolismo , Pirroles/farmacología , Análisis de Secuencia , Homología de Secuencia de Ácido Nucleico , Compuestos de Espiro/farmacología
14.
J Assoc Physicians India ; 62(4): 306-10, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25327032

RESUMEN

OBJECTIVES: To determine the plasma and erythrocyte zinc levels in women with preeclampsia and eclampsia after 28 weeks of gestation and compare with normal pregnancy and to correlate with the foetal outcome. MATERIAL AND METHODS: 150 antenatal women were divided into Study group A (75 women with preeclampsia or eclampsia); Control group B (75 women with normal pregnancy). Plasma and erythrocyte zinc levels were estimated in both the groups and correlated with the foetal outcome. RESULTS: The plasma zinc levels were significantly low (p < 0.01) in women with severe pre-eclampsia (9.28 +/- 1.63 micromol/l) and eclampsia (9.28 +/- 2.61 micromol/l) as compared to controls (10.63 +/- 1.82 micromol/l). The difference in the erythrocyte zinc levels was not statistically significant in the two groups. There were 4 (5.33%) stillbirths and 8 (10.66%) neonatal deaths in the study group as compared to 2 (2.6%) neonatal deaths in the control group. There was no statistically significant difference in the plasma and erythrocyte zinc levels in infants weighing less than 2500 gm in both the groups.The maternal mortality rate was 1.33% and the overall perinatal mortality rate in the study group was 17.3% as compared to 2.6% in the control group. CONCLUSIONS: Plasma zinc levels were significantly lowered in severe preeclampsia and eclampsia while the erythrocyte zinc levels did not show any significant change. There was no correlation between plasma or erythrocyte zinc levels and intrauterine growth restriction in pre-eclampsia.


Asunto(s)
Preeclampsia/sangre , Zinc/sangre , Adulto , Estudios de Casos y Controles , Femenino , Humanos , Embarazo , Resultado del Embarazo
15.
Cureus ; 16(3): e55910, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38601404

RESUMEN

INTRODUCTION: This research was conducted to assess the effectiveness of red cell distribution width (RDW) as an indicator for pre-eclampsia (PE), a condition characterized by elevated blood pressure and the presence of protein in the urine occurring beyond the 20th week of pregnancy. METHODOLOGY: The case-control investigation spanned 10 months, following the acquisition of informed consent and the receipt of ethical clearance. The study sample comprised a total of 70 pregnant women, evenly divided into two groups: 35 cases of PE and 35 normotensive pregnant controls. Both the cases and controls provided 3 ml venous blood samples. The study employed a semi-automated three-part hematological analyzer to establish the baseline RDW for all individuals. RESULTS: This study showed that the individuals with pre-eclampsia had a greater RDW compared to the healthy pregnant women. The observed difference was found to be statistically significant, with a p-value of 0.004. The receiver operating curve (ROC) analysis showed that RDW exhibited significant diagnostic accuracy in differentiating between cases and controls (area under the curve [AUC] = 0.71, P = 0.004) when employing a cut-off value of >= 18.25. The sensitivity was 80% and the specificity was 71.4%. CONCLUSION: In contrast to other indicators of inflammation, RDW is a cost-effective and easily accessible biomarker that can be acquired from routine complete blood counts. It has the potential to be valuable in predicting and diagnosing pre-eclampsia.

16.
Eur J Obstet Gynecol Reprod Biol X ; 22: 100300, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38665325

RESUMEN

Background: Pregnant women are particularly vulnerable to lead toxicity due to increased absorption and decreased elimination of lead from their bodies. The δ-aminolevulinic acid dehydratase (ALAD) gene plays a crucial role in lead metabolism, and its polymorphisms have been implicated in modifying the susceptibility to lead toxicity. Methods: A cross-sectional study was conducted involving 90 pregnant women and blood samples were collected to measure blood lead levels (BLL) and assessed DNA damage using the comet assay. ALAD polymorphisms were genotyped using PCR-RFLP analysis with MspI restriction enzyme. Statistical analysis, including chi-square tests, logistic regression, and correlation analysis, was performed to determine associations between ALAD polymorphisms, BLL, and DNA damage. Results: From 90 pregnant women the participants, 16 had high BLL (≥5 µg/dL), while the remaining 74 had normal levels (<5 µg/dL). The ALAD 1-2 genotype was found to be significantly associated with high BLL (p < 0.001). Pregnant women with the ALAD 1-2 genotype exhibited higher levels of DNA damage compared to those with other genotypes (p < 0.001). Furthermore, a positive correlation was observed between the transfer of lead concentration from mother to infant and DNA damage severity (r = 0.511, p < 0.001). Conclusions: The combination of comet assay and polymorphism analysis offers a comprehensive approach to understanding the impact of lead exposure during pregnancy. These findings underscore the urgent need for effective regulatory measures to reduce lead exposure in the environment and mitigate its adverse effects of lead on maternal and child health.

17.
Indian J Ophthalmol ; 72(4): 565-570, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38189524

RESUMEN

PURPOSE: To compare postoperative cosmesis, mydriasis, fundus visibility, and anterior chamber depth (ACD) in congenital and traumatic iris defects after single-pass four-throw pupilloplasty (SFTP). SETTINGS AND DESIGN: Hospital-based non-randomized interventional study. METHODS: SFTP was done along with phacoemulsification in six patients each with congenital and traumatic iris defects, and the patients were followed for a minimum period of 3 months. The postoperative pupil shape, size, mydriasis, and ACD were compared between the two groups. RESULTS: Tissue approximation was successful in 11 out of 12 patients (91.7%), whereas it failed to do so in one patient with traumatic iris tear (8.3%). A central round pupil was attained in all six patients with congenital defects (group 1), whereas in the traumatic group (group 2), a central round pupil was attained in four cases. Group 1 did not show a significant reduction in horizontal pupil diameter, but group 2 had a significant reduction in pupil diameter postoperatively. Mydriasis and fundus visibility were satisfactory in all cases. There was a significant deepening of ACD in both groups. CONCLUSION: Traumatic mydriasis usually requires SFTP at two opposite poles to achieve a central pupil with a significant reduction in pupil size, whereas congenital coloboma requires SFTP to be done at the site of coloboma with occasional enlargement at the opposite pole if the pupil is eccentric.


Asunto(s)
Extracción de Catarata , Coloboma , Midriasis , Humanos , Midriasis/diagnóstico , Midriasis/etiología , Midriasis/cirugía , Coloboma/cirugía , Iris/cirugía , Pupila , Cámara Anterior/cirugía
18.
Int J Stroke ; 19(1): 76-83, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37577976

RESUMEN

BACKGROUND: India accounts for 13.3% of global disability-adjusted life years (DALYs) lost due to stroke with a relatively younger age of onset compared to the Western population. In India's public healthcare system, many stroke patients seek care at tertiary-level government-funded medical colleges where an optimal level of stroke care is expected. However, there are no studies from India that have assessed the quality of stroke care, including infrastructure, imaging facilities, or the availability of stroke care units in medical colleges. AIM: This study aimed to understand the existing protocols and management of acute stroke care across 22 medical colleges in India, as part of the baseline assessment of the ongoing IMPETUS stroke study. METHODS: A semi-structured quantitative pre-tested questionnaire, developed based on review of literature and expert discussion, was mailed to 22 participating sites of the IMPETUS stroke study. The questionnaire assessed comprehensively all components of stroke care, including human resources, emergency system, in-hospital care, and secondary prevention. A descriptive analysis of their status was undertaken. RESULTS: In the emergency services, limited stroke helpline numbers, 3/22 (14%); prenotification system, 5/22 (23%); and stroke-trained physicians were available, 6/22 (27%). One-third of hospitals did not have on-call neurologists. Although non-contrast computed tomography (NCCT) was always available, 39% of hospitals were not doing computed tomography (CT) angiography and 13/22 (59%) were not doing magnetic resonance imaging (MRI) after routine working hours. Intravenous thrombolysis was being done in 20/22 (91%) hospitals, but 36% of hospitals did not provide it free of cost. Endovascular therapy was available only in 6/22 (27%) hospitals. The study highlighted the scarcity of multidisciplinary stroke teams, 8/22 (36%), and stroke units, 7/22 (32%). Lifesaving surgeries like hematoma evacuation, 11/22 (50%), and decompressive craniectomy, 9/22 (41%), were performed in limited numbers. The availability of occupational therapists, speech therapists, and cognitive rehabilitation was minimal. CONCLUSION: This study highlighted the current status of acute stroke management in publicly funded tertiary care hospitals. Lack of prenotification, limited number of stroke-trained physicians and neurosurgeons, relatively lesser provision of free thrombolytic agents, limited stroke units, and lack of rehabilitation services are areas needing urgent attention by policymakers and creation of sustainable education models for uniform stroke care by medical professionals across the country.


Asunto(s)
Accidente Cerebrovascular , Humanos , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/terapia , Flujo de Trabajo , Vías Clínicas , Hospitales , Atención a la Salud
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