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1.
J Assoc Physicians India ; 72(1): 113, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38736088

RESUMO

We found the article on "The Digital Technology in Clinical Medicine: From Calculators to ChatGPT" interesting.1 According to Kulkarni et al., humanity has witnesses four important social system changes, starting with the primitive huntersgatherers and progressing to horticultural, agricultural, industrial, and the current fifth, which is based on digital information technology and has altered the way we present, recognize, and utilize different factors of production. In clinical medicine, digital technology has advanced significantly since the days of computations. According to Kulkarni et al., we have to benefit from these advancements as we all improve the lives of our patients while being cautious not to overturn the doctor-patient relationship. If technology, clinical expertise, and humanistic values are properly balanced, Kulkarni et al. concluded that the future is quite glorious.1 Regulatory organizations are pushing for improvements through clinical trials as a result of recognition of the expanding influence of digital technology in healthcare delivery. The "World Health Organizations Guidelines for Digital Interventions" and the "Food and Drug Administration's Digital Health Center of Excellence" are only two of the projects that are currently being highlighted in the study as efforts to analyze and implement digital health services.


Assuntos
Deficiência de Ácido Fólico , Pancitopenia , Humanos , Pancitopenia/etiologia , Pancitopenia/diagnóstico , Ácido Fólico/uso terapêutico
2.
Aging (Albany NY) ; 16(9): 7856-7869, 2024 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-38700503

RESUMO

Vitamin B12 and folic acid could reduce blood homocysteine levels, which was thought to slow down the progression of Alzheimer's disease (AD), but previous studies regarding the effect of vitamin B12 and folic acid in treatment of AD have not reached conclusive results. We searched PubMed and Embase until January 12, 2023. Only randomized control trials involving participants clearly diagnosed with AD and who received vitamin B12 and folic acid were enrolled. Five studies that met the criteria were selected for inclusion in the meta-analysis. Changes in cognitive function were measured based on either the Mini-Mental State Examination (MMSE) or the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog). Changes in daily life function and the level of blood homocysteine were also investigated. After a 6-month treatment, administration of vitamin B12 and folic acid improved the MMSE scores more than placebo did (SMD = 0.21, 95% CI = 0.01 to 0.32, p = 0.04) but did not significantly affect ADAS-Cog scores (SMD = 0.06, 95% CI = -0.22 to 0.33, p = 0.68) or measures of daily life function. Blood homocysteine levels were significantly decreased after vitamin B12 and folic acid treatment. Participants with AD who received 6 months of vitamin B12 and folic acid supplementation had better MMSE scores but had no difference in ADAS-Cog scores. Daily life function did not improve after treatment.


Assuntos
Doença de Alzheimer , Ácido Fólico , Homocisteína , Ensaios Clínicos Controlados Aleatórios como Assunto , Vitamina B 12 , Humanos , Ácido Fólico/uso terapêutico , Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/sangue , Vitamina B 12/uso terapêutico , Vitamina B 12/sangue , Homocisteína/sangue , Cognição/efeitos dos fármacos
4.
BMC Pregnancy Childbirth ; 24(1): 241, 2024 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-38580949

RESUMO

BACKGROUND: Folic acid, a water-soluble B-complex vitamin, plays a crucial role in DNA synthesis and maintenance, making it particularly significant during reproduction. Its well-known ability to reduce the risk of congenital anomalies during the periconceptional period underscores its importance. The increased requirement for folate during pregnancy and lactation is essential to support the physiological changes of the mother and ensure optimal growth and development of the foetus and offspring. This study assessed the knowledge, awareness, and use of folic acid among pregnant and lactating women of reproductive age residing in Dodowa in the Shai Osu-Doku District, Accra, Ghana. METHODS: The study was a cross-sectional design that involved 388 randomly selected participants (97 pregnant and 291 lactating women). Structured questionnaires were administered to gather information on the socioeconomic demographic characteristics, knowledge, awareness, and use of folic acid of the participants. Dietary intake was assessed using a food frequency questionnaire. The data were analysed using descriptive statistics and Pearson's chi-square analysis tests and are presented as frequencies and percentages, means, standard deviations, bar graphs, and pie charts. The significance of the results was determined at a 95% confidence interval. RESULTS: The mean age of the participants was 31 ± 5.0 years. Among the study participants, 46.1% demonstrated knowledge of folic acid deficiency, while approximately 68.3% had a high awareness of folic acid supplementation. Approximately 75% of the participants indicated that they had not used folic acid supplements within the week, and 15.5% reported consuming folic acid-fortified food per week. CONCLUSIONS: The women exhibited high awareness but poor knowledge regarding the usage of folic acid supplementation during pregnancy and lactation. Consequently, this lack of knowledge influenced the low use of folic acid supplements and low intake of folate-rich foods among pregnant and lactating mothers.


Assuntos
Defeitos do Tubo Neural , Complexo Vitamínico B , Gravidez , Feminino , Humanos , Adulto , Ácido Fólico/uso terapêutico , Estudos Transversais , Gana , Lactação , Conhecimentos, Atitudes e Prática em Saúde , Suplementos Nutricionais , Complexo Vitamínico B/uso terapêutico , Inquéritos e Questionários
5.
Medicina (Kaunas) ; 60(4)2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38674281

RESUMO

The increasing prevalence of bariatric surgery among women of childbearing age raises critical questions about the correct management of pregnancy following these procedures. This literature review delves into the multifaceted considerations surrounding pregnancy after bariatric surgery, with a particular focus on the importance of preconception counselling, appropriate nutrition assessment, and the necessity of correct folic acid supplementation. Key areas of investigation include nutrient absorption challenges, weight gain during pregnancy, and potential micronutrient deficiencies. Examining the relationship between bariatric surgery and birth defects, particularly heart and musculoskeletal issues, uncovers a twofold increase in risk for women who underwent surgery before pregnancy, with the risk emphasized before folic acid fortification. In contrast, a nationwide study suggests that infants born to mothers with bariatric surgery exhibit a reduced risk of major birth defects, potentially associated with improved glucose metabolism. In addition, this review outlines strategies for managing gestational diabetes and other pregnancy-related complications in individuals with a history of bariatric surgery. By synthesizing existing literature, this paper aims to provide healthcare providers with a comprehensive framework for the correct management of pregnancy in this unique patient population, promoting the health and well-being of both mother and child.


Assuntos
Cirurgia Bariátrica , Obesidade , Complicações na Gravidez , Adulto , Feminino , Humanos , Gravidez , Cirurgia Bariátrica/efeitos adversos , Cirurgia Bariátrica/métodos , Diabetes Gestacional , Ácido Fólico/administração & dosagem , Ácido Fólico/uso terapêutico , Complicações na Gravidez/prevenção & controle , Complicações na Gravidez/etiologia , Redução de Peso , Obesidade/cirurgia , Obesidade/terapia
6.
Birth Defects Res ; 116(5): e2343, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38688860

RESUMO

BACKGROUND: Mandatory fortification of staple foods with folic acid is an effective public health strategy to prevent folic acid-preventable spina bifida and anencephaly (FAP SBA). We estimated the global proportion of FAP SBA prevented through mandatory folic acid fortification of cereal grains (i.e., wheat flour, maize flour, and rice). METHODS: We used year 2022 data from the Food Fortification Initiative to identify countries (n = 69) with mandatory fortification of grains that includes folic acid. Sixty-eight countries were eligible for analysis with complete data. Proportion of FAP SBA prevention was modeled assuming >150 mcg/day of folic acid fortification protects against FAP SBA, reducing post-fortification prevalence to a lowest achievable level of 0.5 cases per 1000 births. RESULTS: Our analysis found that a total of 63,520 cases of FAP SBA were prevented in the year 2022 in 68 countries implementing mandatory folic acid fortification of grains with folic acid. This translated to a 23.7% prevention of all possible FAP SBA prevention globally. An excess of 204,430 cases of FAPSBA still occurred in over 100 countries where mandatory staple food fortification with folic acid is not implemented. CONCLUSION: Our study showed that only a quarter of all FAP SBA cases were averted through mandatory folic acid fortification in the year 2022; many countries are not implementing the policy, resulting in a large proportion of FAP SBA cases that can be prevented. Fortification will help countries with achieving 2030 Sustainable Development Goals on neonatal- and under-five mortality, disability, stillbirths, and elective terminations prevention, from FAP SBA.


Assuntos
Anencefalia , Ácido Fólico , Alimentos Fortificados , Disrafismo Espinal , Humanos , Ácido Fólico/uso terapêutico , Anencefalia/prevenção & controle , Anencefalia/epidemiologia , Disrafismo Espinal/prevenção & controle , Disrafismo Espinal/epidemiologia , Feminino , Saúde Global , Prevalência , Gravidez , Farinha , Grão Comestível
7.
Nutr Diabetes ; 14(1): 22, 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38649347

RESUMO

BACKGROUND: The beneficial effects of folate have been observed under different conditions, but the available evidence on inflammation and reduction of cardiovascular disease (CVD) in type 2 diabetes mellitus (T2DM) is limited. The study aimed to explore the effects of folate on inflammation and homocysteine amongst individuals with T2DM. METHODS: PubMed, Scopus, and Cochrane Library were used to search for evidence. A random-effect model meta-analysis through Review Manager (version 5.4) and metaHun was performed. Results were reported as standardized mean differences (SMD) and 95% confidence intervals graphically using forest and funnel plots. RESULTS: Data from 9 trials with 426 patients living with T2DM were analyzed. Folic acid supplementation significantly revealed a large effect size on homocysteine levels compared to placebo, SMD = -1.53, 95%CI (-2.14,-0.93), p < 0.05. Additionally, we observed a medium marginal effect size on C-reactive protein (SMD = -0.68, 95%CI (-1.34, -0.01), p = 0.05). However, no significant effect on tumor necrosis factor-α (SMD = -0.86, 95%CI (-2.65, 0.93), p = 0.34), and interleukin-6 (SMD = -0.04, 95%CI (-1.08, 1.01), p = 0.95) was observed. CONCLUSION: Evidence analyzed in this study suggests that folic acid supplementation in T2DM reduces homocysteine and may mitigate CVDs. However, its effect on inflammation is inconclusive.


Assuntos
Proteína C-Reativa , Diabetes Mellitus Tipo 2 , Suplementos Nutricionais , Ácido Fólico , Homocisteína , Inflamação , Ensaios Clínicos Controlados Aleatórios como Assunto , Humanos , Proteína C-Reativa/análise , Proteína C-Reativa/metabolismo , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/tratamento farmacológico , Ácido Fólico/uso terapêutico , Ácido Fólico/administração & dosagem , Homocisteína/sangue , Inflamação/sangue , Inflamação/tratamento farmacológico , Interleucina-6/sangue , Fator de Necrose Tumoral alfa/sangue
8.
Am J Clin Nutr ; 119(3): 821-828, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38432716

RESUMO

BACKGROUND: The optimal dosage range for B-vitamin supplementation for stroke prevention has not received sufficient attention. OBJECTIVE: Our aim was to determine the optimal dosage range of a combination of folic acid, vitamin B12, and vitamin B6 supplementation in stroke prevention. METHODS: We searched PubMed, the Cochrane Central Register of Controlled Trials, and Embase database for randomized controlled trials published between January 1966 and April 2023, whose participants received B-vitamin supplementation and that reported the number of stroke cases. Relative risk (RR) was used to measure the effect of combined supplementation on risk of stroke using a fixed-effects model. Risk of bias was assessed with the Cochrane risk-of-bias algorithm. RESULTS: The search identified 14 randomized controlled trials of folic acid combined with vitamin B12 and vitamin B6 supplementation for stroke prevention that included 76,664 participants with 2720 stroke cases. In areas without and with partial folic acid fortification, combined B-vitamin supplementation significantly reduced the risk of stroke by 34% [RR: 0.66; 95% confidence interval (CI): 0.50, 0.86] and 11% (RR: 0.89; 95% CI: 0.79, 1.00), respectively. Further analysis showed that a dosage of folic acid ≤0.8 mg/d and vitamin B12 ≤0.4 mg/d was best for stroke prevention (RR: 0.65; 95% CI: 0.48, 0.86) in these areas. In contrast, no benefit of combined supplementation was found in fortified areas (RR: 1.04; 95% CI: 0.94, 1.16). CONCLUSIONS: Our meta-analysis found that the folic acid combined with vitamin B12 and vitamin B6 supplementation strategy significantly reduced the risk of stroke in areas without and with partial folic acid fortification. Combined dosages not exceeding 0.8 mg/d for folic acid and 0.4 mg/d for vitamin B12 supplementation may be more effective for populations within these areas. This trial was registered at PROSPERO asCRD42022355077.


Assuntos
Acidente Vascular Cerebral , Vitaminas , Humanos , Vitamina B 12/uso terapêutico , Ácido Fólico/uso terapêutico , Vitamina B 6/uso terapêutico , Acidente Vascular Cerebral/prevenção & controle , Suplementos Nutricionais
9.
Nutrients ; 16(5)2024 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-38474883

RESUMO

Folate, also known as vitamin B9, facilitates the transfer of methyl groups among molecules, which is crucial for amino acid metabolism and nucleotide synthesis. Adequate maternal folate supplementation has been widely acknowledged for its pivotal role in promoting cell proliferation and preventing neural tube defects. However, in the post-fortification era, there has been a rising concern regarding an excess maternal intake of folic acid (FA), the synthetic form of folate. In this review, we focused on recent advancements in understanding the influence of excess maternal FA intake on offspring. For human studies, we summarized findings from clinical trials investigating the effects of periconceptional FA intake on neurodevelopment and molecular-level changes in offspring. For studies using mouse models, we compiled the impact of high maternal FA supplementation on gene expression and behavioral changes in offspring. In summary, excessive maternal folate intake could potentially have adverse effects on offspring. Overall, we highlighted concerns regarding elevated maternal folate status in the population, providing a comprehensive perspective on the potential adverse effects of excessive maternal FA supplementation on offspring.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Defeitos do Tubo Neural , Animais , Camundongos , Humanos , Suplementos Nutricionais/efeitos adversos , Ácido Fólico/uso terapêutico , Defeitos do Tubo Neural/prevenção & controle , Família
10.
J Evid Based Med ; 17(1): 134-144, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38465839

RESUMO

OBJECTIVE: With the increasing number of patients with cognitive impairment, nonpharmacological ways to delay cognitive impairment have attracted people's attention, such as lifestyle changes and nutritional supplementation. Folic acid supplementation appears to be a promising treatment option. However, it remains controversial whether folic acid supplementation is effective in delaying adult's cognitive impairment. Therefore, we conducted a meta-analysis to analyze the effects of folic acid supplementation on different cognitive impairments. METHODS: We systematically searched PubMed, Web of Science, EMbase, Cochrane Central Register of Controlled Trials, China National Knowledge Infrastructure (CNKI), WanFang and VIP databases for randomized controlled trials on January 22, 2024. The included population comprised those diagnosed with cognitive impairment. We included trials that compared folic acid treatment with placebo, other dosing regimens, or other intervention controls. Conducting quality evaluation of included studies according to the Cochrane Risk of Bias tool. Statistical analyses were performed using Review Manager software. RESULTS: Twenty-two trials, including 3604 participants, met inclusion criteria. Compared with controls, the cognitive function of Alzheimer's disease (AD) patients showed improvement with folic acid supplementation: supplementation with < 3 mg (standardized mean differences (SMD) = 0.15, 95% confidence interval (CI) -0.10 to 0.41), and supplementing with ≥ 3 mg folic acid could improve cognitive function in AD patients (SMD = 1.03, 95% CI 0.18 to 1.88). Additionally, it reduced homocysteine (HCY) levels (mean differences (MD) = -4.74, 95% CI -8.08 to -1.39). In mild cognitive impairment (MCI) patients, cognitive function improved with folic acid supplementation: supplementation with > 400 µg (SMD = 0.38, 95% CI 0.13 to 0.63), and supplementation with ≤ 400 µg (SMD = 1.10, 95% CI 0.88 to 1.31). It also reduced HCY levels at intervention ≤ 6 months (MD = -3.93, 95% CI -5.05 to -2.82) and intervention > 6 months (MD = -4.38, 95% CI -5.15 to -3.61). However, supplementing with folic acid did not improve cognitive function in vascular cognitive impairment (VCI) patients, with folic acid supplements < 3 mg (SMD = -0.07, 95% CI -0.23 to -0.08), folic acid supplements ≥ 3 mg (SMD = 0.46, 95% CI -0.57 to 1.49), however, it reduced HCY levels at intervention > 6 months (MD = -5.91, 95% CI -7.13 to -4.69) and intervention ≤ 6 months (MD = -11.15, 95% CI -12.35 to -9.95). CONCLUSIONS: Supplement folic acid is beneficial to the cognitive profile of patients with MCI, supplementation with ≥ 3 mg folic acid can improve cognitive function in AD patients.


Assuntos
Doença de Alzheimer , Disfunção Cognitiva , Adulto , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Disfunção Cognitiva/tratamento farmacológico , Doença de Alzheimer/tratamento farmacológico , Suplementos Nutricionais , Ácido Fólico/uso terapêutico
11.
JAMA Netw Open ; 7(3): e241777, 2024 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-38457177

RESUMO

Importance: India has a disproportionately high prevalence of neural tube defects, including spina bifida and anencephaly (SBA), causing a high number of stillbirths, elective pregnancy terminations, and child mortality; India contributes a large proportion of the global burden of SBA. Thirty years after folic acid was shown to be effective in reducing SBA prevalence, only about one-quarter of such births are prevented globally through cereal grain fortification. Objective: To determine the association of folic acid-fortified iodized salt with serum folate concentrations among nonpregnant and nonlactating women of reproductive age. Design, Setting, and Participants: This nonrandomized controlled trial using a preintervention and postintervention design was conducted in 4 rural villages in Southern India from July 1 to November 30, 2022. All households in the villages agreed to participate in the study. Preintervention and postintervention serum folate levels were analyzed among study participants at baseline and after 4 months, respectively. Intervention: Consumption of approximately 300 µg/d of folic acid using double fortified salt (folic acid plus iodine). Median serum folate concentrations were assessed at baseline and 4 months. Main Outcomes and Measures: Change in median serum folate levels between baseline and study end point as the primary outcome of the study. Results: A total of 83 nonpregnant nonlactating women aged 20 to 44 years (mean [SD] age, 30.9 [5.1] years) were eligible for the study and provided serum samples for analysis at baseline and the end point of the intervention. The median serum folate concentration increased from 14.6 (IQR, 11.2-20.6) nmol/L at baseline to 54.4 (IQR, 43.5-54.4) nmol/L at end of study, a 3.7-fold increase from baseline to study end point. Two-tailed Wilcoxon signed rank test showed the median difference in preintervention and postintervention serum folate concentrations to be highly significant (P < .001). The participants found the salt acceptable in color and taste. Conclusions and Relevance: Use of folic acid-fortified iodized salt was associated with increased serum folate concentrations in women of reproductive age. This novel evidence can inform public health policy to accelerate SBA prevention. Trial Registration: ClinicalTrials.gov Identifier: NCT06174883.


Assuntos
Iodo , Defeitos do Tubo Neural , Cloreto de Sódio na Dieta , Disrafismo Espinal , Adulto , Feminino , Humanos , Ácido Fólico/uso terapêutico , Alimentos Fortificados , Adulto Jovem
12.
Midwifery ; 132: 103984, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38554606

RESUMO

BACKGROUND: Folic acid (FA) supplementation before and in early pregnancy is known to improve outcomes such as reducing neural tube defects; however, little is known about groups in Australia at risk of low FA use. AIM: To determine whether differences exist in FA supplementation rates between Australian-born women and migrant women, with a secondary aim of examining the sociodemographic characteristics of women who are not supplementing with FA in early pregnancy. METHODS: A retrospective cohort study from January 2018-July 2022 in a high-migrant population in Western Sydney, Australia. Multivariate logistic regression analysis was conducted adjusting for confounders including place of birth, age, ethnicity, parity, history of diabetes, and type of conception. FINDINGS: There were 48,045 women who met inclusion criteria; 65% of whom were migrants. We identified that 39.4% of the study population did not report FA supplementation by early pregnancy. Women who were migrants were more likely to report FA usage than those born in Australia (aOR 1.24; 95%CI 1.17-1.31). Women least likely to report use of FA were women < 20 years of age (aOR 0.54; 95%CI 0.44-0.67) and multiparous women (aOR 0.84; 95%CI 0.82-0.86). Women with type 1 or type 2 diabetes were more likely to report FA use (aOR 1.66; 95%CI 1.11-2.48, aOR 1.30; 95%CI 1.05-1.61). CONCLUSION: A significant proportion of the population did not report FA supplementation before or during early pregnancy. To increase uptake of FA supplementation, clinicians and public health messaging should target at-risk groups.


Assuntos
Suplementos Nutricionais , Ácido Fólico , Migrantes , Humanos , Feminino , Ácido Fólico/uso terapêutico , Ácido Fólico/administração & dosagem , Adulto , Gravidez , Austrália , Estudos de Coortes , Estudos Retrospectivos , Suplementos Nutricionais/estatística & dados numéricos , Migrantes/estatística & dados numéricos , Migrantes/psicologia , Cuidado Pré-Concepcional/métodos , Cuidado Pré-Concepcional/estatística & dados numéricos , Cuidado Pré-Concepcional/normas , Modelos Logísticos , Defeitos do Tubo Neural/prevenção & controle
13.
Curr Probl Cardiol ; 49(6): 102539, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38521293

RESUMO

Dyslipidaemia and hyperhomocysteinemia are known risk factors for cardiovascular disease. While it is evident that optimization of plasma lipid is associated with low risk of cardiovascular disease in the general population, it is not yet fully clear whether reduction of homocysteinemia is associated with an improvement in risk in all subjects. The aim of our narrative review is to highlight eventual effects of folate supplementation on LDL-C levels, LDL-C oxidation and atherosclerosis-related complications. A comprehensive literature search was done in electronic database, including PubMed, Web of Science, Cochrane, and Scopus from inception up to January 2024. Based on the available evidence, epidemiological data, pathophysiological observations and meta-analyses of randomized clinical trials suggest that folic acid supplementation may modestly but significantly improve plasma lipid levels, lipid atherogenicity, and atherosclerosis-related early vascular damage, and that folic acid supplementation may significantly reduce the risk of cerebrovascular disease. Considering the low-cost and high safety profile of folic acid, its long-term supplementation could be considered for dyslypidaemic patients in secondary prevention for cardiovascular disease.


Assuntos
Suplementos Nutricionais , Ácido Fólico , Humanos , Ácido Fólico/uso terapêutico , Doenças Cardiovasculares/prevenção & controle , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/epidemiologia , Lipídeos/sangue , Dislipidemias/tratamento farmacológico , Dislipidemias/sangue , Hiper-Homocisteinemia/tratamento farmacológico , Hiper-Homocisteinemia/sangue , Hiper-Homocisteinemia/epidemiologia , Aterosclerose/prevenção & controle , Aterosclerose/epidemiologia , Complexo Vitamínico B/uso terapêutico
14.
Int J Mol Sci ; 25(4)2024 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-38396800

RESUMO

Prostate cancer (PCa) remains a common cancer with high mortality in men due to its heterogeneity and the emergence of drug resistance. A critical factor contributing to its lethality is the presence of prostate cancer stem cells (PCSCs), which can self-renew, long-term propagate tumors, and mediate treatment resistance. MicroRNA-34a (miR-34a) has shown promise as an anti-PCSC therapeutic by targeting critical molecules involved in cancer stem cell (CSC) survival and functions. Despite extensive efforts, the development of miR-34a therapeutics still faces challenges, including non-specific delivery and delivery-associated toxicity. One emerging delivery approach is ligand-mediated conjugation, aiming to achieve specific delivery of miR-34a to cancer cells, thereby enhancing efficacy while minimizing toxicity. Folate-conjugated miR-34a (folate-miR-34a) has demonstrated promising anti-tumor efficacy in breast and lung cancers by targeting folate receptor α (FOLR1). Here, we first show that miR-34a, a TP53 transcriptional target, is reduced in PCa that harbors TP53 loss or mutations and that miR-34a mimic, when transfected into PCa cells, downregulated multiple miR-34a targets and inhibited cell growth. When exploring the therapeutic potential of folate-miR-34a, we found that folate-miR-34a exhibited impressive inhibitory effects on breast, ovarian, and cervical cancer cells but showed minimal effects on and targeted delivery to PCa cells due to a lack of appreciable expression of FOLR1 in PCa cells. Folate-miR-34a also did not display any apparent effect on PCa cells expressing prostate-specific membrane antigen (PMSA) despite the reported folate's binding capability to PSMA. These results highlight challenges in the specific delivery of folate-miR-34a to PCa due to a lack of target (receptor) expression. Our study offers novel insights into the challenges and promises within the field and casts light on the development of ligand-conjugated miR-34a therapeutics for PCa.


Assuntos
Ácido Fólico , Neoplasias Pulmonares , MicroRNAs , Neoplasias da Próstata , Humanos , Masculino , Linhagem Celular Tumoral , Proliferação de Células/genética , Receptor 1 de Folato/genética , Receptor 1 de Folato/metabolismo , Receptor 1 de Folato/uso terapêutico , Regulação Neoplásica da Expressão Gênica , Ligantes , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/genética , MicroRNAs/metabolismo , MicroRNAs/uso terapêutico , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/genética , Ácido Fólico/farmacologia , Ácido Fólico/uso terapêutico
15.
Am J Trop Med Hyg ; 110(3): 576-587, 2024 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-38350155

RESUMO

The Indonesian government has provided iron-folic acid (IFA) supplementation in response to maternal pregnancy iron-deficiency anemia. However, community-based cohorts on IFA's effects on maternal and infant anemia are limited. A mixed-method study design with a primary longitudinal cohort was used to observe the association between IFA and anemia in mothers and infants. Iron-folic acid supplementation was observed throughout pregnancy. Anemia status was based on a single hemoglobin assessment using HemoCue Hb 201 + in the second or third trimester of pregnancy for the mother and at birth for the infant. Qualitative data were collected via in-depth interviews (IDIs) and a forum group discussion (FGD). Iron-folic acid supplementation with > 180 tablets throughout pregnancy was associated with lower pregnancy anemia (adjusted relative risk [aRR] = 0.25, 95% CI: 0.092-0.664, P = 0.006) after adjusting for potential confounding variables. Supplementation with IFA was not associated with infant anemia (RR = 1.033, 95% CI: 0.70-1.54, P = 0.873 for 90-180 tablets and RR = 1.07, 95% CI 0.70-1.63, P = 0.774 for > 180 tablets). The IDIs and FGD suggested that IFA and multivitamin content knowledge, IFA consumption monitoring, and paternal involvement were important in IFA supplementation and effectiveness in reducing anemia. Iron-folic acid supplementation was associated with reduced maternal but not infant anemia. Because maternal anemia is associated with infant anemia, an anemia monitoring program for women in early pregnancy is vital in addressing infant health. Paternal involvement was also identified as a major factor in maternal and child health.


Assuntos
Anemia Ferropriva , Anemia , Gravidez , Recém-Nascido , Lactente , Criança , Feminino , Humanos , Ferro/uso terapêutico , Indonésia/epidemiologia , Estudos Prospectivos , Suplementos Nutricionais , Ácido Fólico/uso terapêutico , Anemia/epidemiologia , Anemia Ferropriva/epidemiologia , Anemia Ferropriva/prevenção & controle
16.
Clin Rheumatol ; 43(3): 971-983, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38311638

RESUMO

BACKGROUND: There are currently no validated criteria that entirely explain or predict response to methotrexate (MTX) treatment in rheumatoid arthritis (RA). We tried to identify the connection between three variants (RFC1 G80A (rs1051266), TYMS 2R/3R (rs34743033), and ATIC C347G (rs2372536)) in the folate pathway of MTX metabolism and the response to MTX monotherapy in a cohort of RA cases. METHODS: A prospective study on 100 RA patients on MTX monotherapy was performed. Disease activity was measured at the start of treatment and 6 months after treatment with MTX. The patients were then split into two groups: those who responded to the treatment and those who did not. The molecular genetic study for the RFC1 (G80A) variant was employed via the PCR-restriction fragment length polymorphism (PCR-RFLP) technique, the ATIC (C347G) variant was performed using TaqMan allelic discrimination real-time PCR, and the tandem repeat sequences of TYMS (2R/3R) were amplified by conventional PCR and detected by agarose gel electrophoresis. RESULTS: The genotype distribution of RFC-1 (G80A) showed significant variations among non-responders and responders in the recessive genetic model. A significant difference was found in TYMS (2R/3R) in the dominant and heterozygous genetic models. However, ATIC (C347G) genotype frequency did not exhibit substantial link with drug response in all genetic models. Furthermore, the genotype and allele rates of the analyzed variants did not show any significant association with adverse events in all genetic models. CONCLUSION: The 80AA genotype of RFC-1 G80A and the 2R/3R or 3R/3R genotypes of TYMS 2R/3R are more vulnerable to the good consequences of MTX therapy. Key Points • Current recommendations support the gold standard role of MTX as a first-line monotherapy for RA patients. However, up to 40% of RA patients do not respond or exhibit partial response to MTX. • Persistent disease activity due to treatment unresponsiveness will affect the long-term outcomes in RA patients. • We aimed, through molecular genetic study, to identify the connection between three variants in the folate pathway of MTX metabolism and the response to methotrexate monotherapy in a cohort of RA patients.


Assuntos
Antirreumáticos , Artrite Reumatoide , Humanos , Metotrexato , Antirreumáticos/efeitos adversos , Ácido Fólico/uso terapêutico , Estudos Prospectivos , Artrite Reumatoide/tratamento farmacológico , Artrite Reumatoide/genética , Artrite Reumatoide/induzido quimicamente , Polimorfismo de Nucleotídeo Único
17.
Medicine (Baltimore) ; 103(6): e37021, 2024 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-38335403

RESUMO

We conducted a study to evaluate the impact of folic acid supplementation on the risk of Alzheimer disease (AD). A Mendelian randomization (MR) analysis model assessed the causal effects of folic acid supplementation on AD, utilizing data from recent genome-wide association studies. Effect estimates were scrutinized using various methods: inverse-variance weighted (IVW), simple mode, weighted mode, simple median, weighted median, penalized weighted median, and the MR-Egger method. The sensitivity analysis assessed heterogeneity and pleiotropy of individual single nucleotide polymorphisms (SNPs) using the IVW method with Cochran Q statistics and MR Egger intercept, respectively. Additionally, a leave-one-out sensitivity analysis determined potential SNP-driven associations. Both fixed-effect and random-effect IVW models in the MR analysis revealed a reduced risk of AD associated with folic acid supplementation (odds ratio, 0.930; 95% CI, 0.903-0.958, P < .001; odds ratio, 0.930; 95% CI, 0.910-0.950, P < .001) based on 7 SNPs as instrumental variables. The reverse MR analysis indicated no causal association between AD and folic acid supplementation. This study, utilizing genetic data, suggests that folic acid supplementation may potentially reduce the risk of AD and provides novel insights into its etiology and preventive measures.


Assuntos
Doença de Alzheimer , Ácido Fólico , Humanos , Ácido Fólico/uso terapêutico , Doença de Alzheimer/epidemiologia , Doença de Alzheimer/genética , Doença de Alzheimer/prevenção & controle , Estudo de Associação Genômica Ampla , Análise da Randomização Mendeliana , Suplementos Nutricionais
18.
J Dig Dis ; 25(1): 27-35, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38342693

RESUMO

OBJECTIVE: To investigate the clinical potential and safety of Moluodan to reverse gastric precancerous lesions. METHODS: Patients aged 18-70 years diagnosed with moderate-to-severe atrophy and/or moderate-to-severe intestinal metaplasia, with or without low-grade dysplasia, and negative for Helicobacter pylori were recruited in this randomized, double-blind, parallel-controlled trial. The primary outcome was the improvement of global histological diagnosis at 1-year follow-up endoscopy using the operative link for gastritis assessment, the operative link for gastric intestinal metaplasia assessment, and the disappearance rate of dysplasia. RESULTS: Between November 3, 2017 and January 27, 2021, 166 subjects were randomly assigned to the Moluodan group, 168 to the folic acid group, 84 to the combination group, and 84 to the high-dose Moluodan group. The improvement in global histological diagnosis was achieved in 60 (39.5%) subjects receiving Moluodan, 59 (37.8%) receiving folic acid, 26 (32.1%) receiving the combined drugs, and 36 (47.4%) receiving high-dose Moluodan. Moluodan was non-inferior to folic acid (95% confidence interval: -9.2 to 12.5; P = 0.02). High-dose Moluodan had a trend for better protective efficacy, though there was no statistical significance. The disappearance rate of dysplasia was 82.8% in the Moluodan group, which was superior to folic acid (53.9%; P = 0.006). No drug-related serious adverse events were observed. CONCLUSIONS: One pack of Moluodan three times daily for 1 year was safe and effective in reversing gastric precancerous lesions, especially dysplasia. Doubling its dose showed a better efficacy trend.


Assuntos
Medicamentos de Ervas Chinesas , Gastrite Atrófica , Infecções por Helicobacter , Helicobacter pylori , Lesões Pré-Cancerosas , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/patologia , Gastrite Atrófica/tratamento farmacológico , Gastrite Atrófica/patologia , Infecções por Helicobacter/complicações , Infecções por Helicobacter/tratamento farmacológico , Lesões Pré-Cancerosas/tratamento farmacológico , Lesões Pré-Cancerosas/patologia , Metaplasia , Ácido Fólico/uso terapêutico , Mucosa Gástrica/patologia
19.
Br J Community Nurs ; 29(3): 137-146, 2024 Mar 02.
Artigo em Inglês | MEDLINE | ID: mdl-38421889

RESUMO

AIM: This study reviews research into the effects of the supplementation of B12 in the prevention and recovery of mental illness, and the potentiation of psychotropic medication. METHODOLOGY: This literature review follows a systematic approach to searching databases CINAHL, EMBASE, Medline, and PsycINFO where 287 non-duplicated articles results were received. Appropriate articles were identified through title and abstract screening and inclusion and exclusion criteria were applied. Five articles were chosen to address the research question following critical appraisal. Thematic analysis was then conducted. FINDINGS: This review identified five randomised controlled trials into the supplementation of various doses of B12 in conjunction with folic acid and B6. The supplement was measured against post-stroke depression prevention, the reduction of symptoms of depression in woman with cardiovascular disease, the effect on negative symptoms in schizophrenia, the reduction and prevention of depression in older adults, and the potentiation of psychotropic interventions. The papers reviewed showed inconclusive results, but evidence to support sub-groups and specific high-risk groups. Strong evidence showed supplementation of B12, folic acid and B6 has high rates of preventing post-stroke depression. CONCLUSION: The findings show that this area of research is still to be developed. The effects of B12 supplementation with other B vitamins on mental health have shown to be inconclusive. There is a case for its use to be considered within certain patient groups to aid recovery of mental health or in some high-risk patient groups. Recommendations are made for further research into high-risk groups of people that may have symptoms or symptoms that could be improved through the supplementation of B12.


Assuntos
Doenças Cardiovasculares , Vitamina B 12 , Feminino , Humanos , Idoso , Vitamina B 12/uso terapêutico , Ácido Fólico/uso terapêutico , Suplementos Nutricionais , Doenças Cardiovasculares/tratamento farmacológico , Avaliação de Resultados em Cuidados de Saúde
20.
Womens Health (Lond) ; 20: 17455057231224176, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38279794

RESUMO

BACKGROUND: Several countries poorly adhere to the World Health Organization's recommendation of folic acid supplementation in the periconceptional period, especially in limited-resource settings. OBJECTIVE: The objective of this study was to investigate the prevalence of and the factors associated with folic acid usage in the periconceptional period among pregnant women at Gadarif Maternity Hospital in eastern Sudan. STUDY DESIGN: This is a cross-sectional study. METHODS: This study was conducted in eastern Sudan from April to September 2022. A total of 720 pregnant women in their first trimester were enrolled. The sociodemographic characteristics and clinical and obstetrical data of pregnant women in their first trimester were assessed using a face-to-face questionnaire. In addition, multivariate regression analysis was performed. RESULTS: In this study, the median (interquartile range) of the age and gravidity of the enrolled women was 26.3 (24.14-29.52) years and 2 (1-4), respectively. Of these 720 women, 423 (58.8%) used folic acid during the periconceptional period, while 27 (3.7%) women used folic acid in the preconceptional period. None of the investigated factors (age, residence, education, employment, body mass index, or gravidity) were associated with periconceptional use of folic acid. CONCLUSION: The study revealed a low prevalence of folic acid usage in preconceptional period among pregnant women in eastern Sudan. Additional efforts are needed to promote folic acid usage in the preconceptional period as well as in the first trimester.


Assuntos
Ácido Fólico , Defeitos do Tubo Neural , Feminino , Gravidez , Humanos , Masculino , Ácido Fólico/uso terapêutico , Estudos Transversais , Suplementos Nutricionais , Sudão/epidemiologia , Inquéritos e Questionários , Defeitos do Tubo Neural/epidemiologia , Defeitos do Tubo Neural/prevenção & controle
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