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1.
Artigo em Inglês | MEDLINE | ID: mdl-39351605

RESUMO

OBJECTIVES: To evaluate improvements in laboratory markers of anaemia (haemoglobin, haematocrit, serum iron, and ferritin) in women with subjective heavy menstrual bleeding (HMB) treated with the levonorgestrel 19.5-mg intrauterine device. MATERIALS AND METHODS: We conducted a pilot study at the Department of Obstetrics and Gynaecology, University of Campinas, Faculty of Medical Sciences, Campinas, SP, Brazil. We compared anaemia markers in 73 women aged 18-48 years suffering from HMB, one year after placement of the IUD. RESULTS: The mean age of participants was 30.0 years (range 24-38); more than half were white, and the mean body mass index (kg/m2) was 27.0. Twenty (27.4%) participants exited the study due to loss to follow-up (n = 12; 16.4%), expulsion (n = 7; 9.6%) and uterine perforation (n = 1; 1.4%). One-year post-IUD placement, amenorrhoea was reported by 10 (13.7%) women. According to intention-to-treat and per protocol analyses, the proportion of women with normal haemoglobin levels significantly improved (p = 0.014 in both analyses), as did haematocrit (p < 0.001 in both analyses) and serum iron (p = 0.003 in both analyses) compared to baseline evaluations. The proportion of women with normal ferritin levels also improved (p < 0.001) in both analyses using a cut-off of 15 ng/ml, though no significant difference was observed using a 30 ng/ml cut-off (p = 0.083 in both analyses). CONCLUSION: The levonorgestrel 19.5-mg IUD effectively improved laboratory markers of anaemia one year after placement in women with HMB.


Our results show that the levonorgestrel 19.5-mg IUD significantly improved anaemia markers in subjects with subjective HMB one year after insertion. The occurrence of expulsions emerged as a notable concern in this treatment group.

2.
Front Glob Womens Health ; 5: 1421884, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39364186

RESUMO

Background: Anaemia, characterized by low red blood cell or haemoglobin levels, impairs oxygen transport in the body and poses a major global public health issue, particularly affecting pregnant women and children. This study focuses on identifying the factors contributing to anaemia among pregnant women receiving antenatal care (ANC) at Mizan-Tepi University Teaching Hospital (MTUTH) in southwest Ethiopia. Methods: A hospital-based unmatched case-control study was conducted from July 1 to August 30, 2022, involving 370 pregnant women (90 with anaemia and 280 without). Data collection included questionnaires, laboratory tests (Hgb and stool examination), and anthropometric measurements. SPSS version 21 was used for data analysis, with binary logistic regression identifying factors associated with anaemia. The significance level was set at a p-value <0.05. Results: The study achieved a 100% response rate for both cases and controls. Factors identified as determinants of anaemia among pregnant women included malaria infection (AOR = 7.83, 95% CI: 3.89-15.8), hookworm infection (AOR = 2.73, 95% CI: 1.39-5.34), short birth interval (AOR = 7.11, 95% CI: 3.59-14.2), and history of unsafe abortion (AOR = 5.40, 95% CI: 2.46-11.8). Conclusion: This study found that malaria infection, hookworm infection, birth interval <33 months, and a history of unsafe abortion are factors contributing to anaemia in pregnant women. Strategies such as distributing insecticide-treated bed nets (ITNs) to combat malaria, improving sanitation, anthelmintic drugs, promoting family planning to prevent unwanted pregnancies and unsafe abortions, and providing preconception care can help reduce the incidence of anaemia.

3.
Artigo em Inglês | MEDLINE | ID: mdl-39394662

RESUMO

AIMS: To assess the risk of anaemia among low-dose aspirin (LDA) exposure in Danish older individuals in a real-world setting. METHODS: Population based-cohort study conducted using Danish registers. The study population included older individuals (≥65 years) exposed to LDA between 2008 and 2013 for primary or secondary prevention of cardiovascular events. Over a five-year follow-up, outcomes included anaemia incidence based on haemoglobin values and hematinic deficiency incidence based on antianemic prescriptions. RESULTS: Among the 313 508 individuals included in the study population, those exposed to LDA (n = 59 869, 19.1%) had an incidence of hematinic deficiency determined by the use of antianemic treatment of 9.6%, with an incidence rate ratio of 9.11 (95% Confidence Interval, CI: 8.81-9.41) when compared to non-users of LDA (n = 253 639, 80.9%), who had an incidence of 3.7%. Anaemia determined by haemoglobin value measurements was observed in 5.9% of those exposed to LDA, with an incidence rate ratio of 7.89 (95% CI: 7.58-8.21) when compared to non-users of LDA. Approximately one in five individuals (n = 2 422, 21.5%) who experienced anaemia also experienced bleeding. Severe anaemia was observed in 1.3% of those exposed to LDA compared to 0.6% of those not exposed. Among the exposed, the reduction in haemoglobin and ferritin levels was associated with the severity of anaemia. CONCLUSION: These findings indicate that in a real-world setting, anaemia with LDA can occur in 6 to 10 older individuals out of every 100 LDA users during the first 5 years of treatment.

4.
Eur Heart J Case Rep ; 8(10): ytae526, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39386284

RESUMO

Background: Aplastic anaemia (AA) is known to progress to paroxysmal nocturnal haemoglobinuria (PNH) during treatment, and thrombosis is a characteristic symptom of PNH. This case report investigates a case of repeated and rapidly progressive multiple arterial thrombosis due to PNH. Case Summary: This case is a 24-year-old woman undergoing treatment for AA. She presented with chest pain and underwent emergency coronary angiography. Thrombus occlusion was found in the distal portion of the right coronary artery, acute myocardial infarction was diagnosed and percutaneous coronary intervention was performed. Thrombus aspiration and balloon dilation were performed. Anticoagulants were administered, but chest pain flared up again on Day 9; coronary angiography was performed, indicating that the proximal portion of the right coronary artery had caused occlusion. On Days 9 and 24, she experienced back pain and was diagnosed with renal infarction. Considering that AA had evolved into PNH and intravascular haemolysis and thrombosis appeared, the diagnosis of PNH was made via flow cytometry. Multiple arterial thrombosis due to PNH was diagnosed, and ravulizumab treatment was started, resulting in the improvement of thrombus progression, chest pain, and back pain. Discussion: Thrombosis due to PNH can recur even after the administration of anticoagulants and antiplatelet agents and has been associated with a high fatality rate. The treatment with ravulizumab, a humanized monoclonal antibody against complement C5, helps with the prevention of thrombosis. Furthermore, anti-complement component C5 therapy is very effective in improving rapidly progressive multiple arterial thrombosis resistant to anticoagulants and antiplatelet agents due to PNH.

5.
Indian J Med Res ; 159(6): 547-556, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-39382466

RESUMO

Background & objectives Reducing maternal anaemia and enhancing feto-maternal health to achieve desired birth outcomes is a major health concern in India. Micronutrient deficiencies during pregnancy may impact fetal growth and neonatal outcomes. There is increasing interest in using multiple micronutrient supplement (MMS) during pregnancy. However, the World Health Organization (WHO) recommends use of MMS containing Iron and Folic Acid (IFA) in the context of "rigorous research". Against this backdrop, an Indian Council of Medical Research (ICMR)-led MMS design expert group met over six months to review the evidence and decide on the formulation of an India-specific MMS supplement for pregnant mothers for potential use in a research setting. Methods The India-MMS design expert group conducted a series of meetings to assess the available evidence regarding the prevalence of micronutrient deficiencies in pregnant women in India, the health benefits of supplementing with different micronutrients during pregnancy, as well as nutrient interactions within the MMS formulation. Based on these considerations, the expert group reached a consensus on the composition of the MMS tailored for pregnant women in India. Results The India-specific MMS formulation includes five minerals and 10 vitamins, similar to the United Nations International Multiple Micronutrient Antenatal Preparation (UNIMMAP) composition. However, the quantities of all vitamins and minerals except Zinc, Vitamin E, and Vitamin B6 differ. Interpretation & conclusions This report provides an overview of the process adopted, the evidence evaluated, and the conclusions from the expert working group meetings to finalize an MMS supplement in pregnancy for the Indian context to be used in a research setting.


Assuntos
Suplementos Nutricionais , Micronutrientes , Humanos , Índia/epidemiologia , Micronutrientes/administração & dosagem , Gravidez , Feminino , Ácido Fólico/administração & dosagem , Ferro/administração & dosagem , Organização Mundial da Saúde , Complicações na Gravidez/epidemiologia , Complicações na Gravidez/prevenção & controle
6.
Matern Child Nutr ; : e13736, 2024 Oct 08.
Artigo em Inglês | MEDLINE | ID: mdl-39377551

RESUMO

Low- and middle-income countries shoulder the greatest burden of stunting and anaemia in children. This calls for prompt and effective intervention measures, while the contributing factors are not fully understood. This study evaluates determinants spanning from individual-, household- and community levels including agroecology and antinutrients as unique sets of predictors. Primary data were collected from 660 rural households representing the midland (ML), highland, and upper highland (UHL) agroecological zones from northern Ethiopia. The study relates several predictors to stunting and anaemia in children aged 6-23 months. We found 49.1% and 49.7% of children were stunted and anaemic, respectively. Children living in the ML are approximately twice more likely to be stunted adjusted odds ratio (AOR: 1.869; 95% CI: 1.147-3.043) than in the UHL. The risk of stunting increases by 16.3% and 41.9% for every unit increase in phytate-to-zinc and phytate-to-iron molar ratios, respectively. A 10% increase in mean aggregated crop yield was observed to reduce the likelihood of stunting occurrence by 13.6%. Households lacking non-farm income-generating opportunities, travel longer time to access the marketplace and poor health service utilisation were associated with increased risk of stunting. Low diversity of child's diet, age of the child (18-23 months) and mothers at a younger age are significantly associated with stunting. Risk of anaemia in children is high amongst households with unimproved water, sanitation, and hygiene practices, younger age (6-11 months) and mostly occurs amongst boys. Children in the ML had a 55% reduced risk of being anaemic (AOR: 0.446; 95% CI: 0.273-0.728) as compared to the UHL. Therefore, the influence of these factors should be considered to tailor strategies for reducing undernutrition in children of 6-23 months in rural Ethiopia. Interventions should go beyond the administrative boundaries into targeting agroecological variation.

7.
Cureus ; 16(8): e68288, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39350871

RESUMO

Varioliform gastritis (VG) is a rare chronic gastritis characterized by mucosal protrusions with central depressions, typically found in the stomach. This paper discusses the first reported case of VG extending into the duodenum, involving a 68-year-old immunocompromised patient with a complex medical history, including prostate cancer and multiple comorbidities. The diagnosis was complicated by the presence of Helicobacter pylori, which was treated successfully with eradication therapy consisting of amoxicillin and clarithromycin along with omeprazole. Highlighting the potential for VG to affect areas beyond the stomach, this case underscores the importance of considering VG in patients with unexplained hypoalbuminemia and gastrointestinal symptoms.

8.
Vox Sang ; 2024 Oct 13.
Artigo em Inglês | MEDLINE | ID: mdl-39396927

RESUMO

BACKGROUND AND OBJECTIVES: Reproductive-aged women are at an increased risk of developing iron deficiency (ID). We aimed to develop a non-invasive screening tool to identify ID in women and assess the acceptability of screening. STUDY DESIGN AND METHODS: We screened women (age 18-49 years) in the community of Western Australia. PRIMARY OUTCOME: acceptability of screening, assessed by the feasibility of recruiting the required sample size (n = 323). SECONDARY OUTCOMES: Hand grip strength, finger prick haemoglobin concentration (Hb), prevalence of heavy menstrual bleeding (HMB), diet, pregnancy history, blood donation, symptoms of ID and history of ID or anaemia (Hb < 120 g/L). Those with Hb <130 g/L and no history of iron therapy in the past 2 years were given referrals for venous full blood count and ferritin sampling. RESULTS: Across 5 days, we recruited 640 eligible women. Of which, 178 (28%) had HMB and 79 (12%) were anaemic. Mean age was 33.5 ± 9.2 years, and mean Hb was 132.4 ± 11.9 g/L. In the past 2 years: 335 (52%) were diagnosed with ID or anaemia; 322 (50%) had taken oral iron; and 210 (33%) had an intravenous iron infusion. Vegetarian diets were followed by 89 (14%); 40 (6%) were regular blood donors; 290 (45%) had a previous pregnancy. HMB increased the risk of symptoms of ID and having prior ID/anaemia diagnosis (67% vs. 47%) or treatment (p < 0.022). Hand grip strength showed a positive relationship with both Hb (adjusted R2 = 0.012, p = 0.004) and ferritin (adjusted R2 = 0.135, p = 0.005). CONCLUSION: ID screening was well accepted by women in the community, with high recruitment rates over a short period. Future screening tool development may consider incorporating hand grip strength and HMB assessment.

9.
Indian J Med Res ; 159(3 & 4): 339-346, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39361798

RESUMO

Background & objectives Sickle cell disease (SCD) is a common genetic disorder, predominantly found in the tribal population of India. The examples of models providing comprehensive care and management to individuals with SCD in public health facilities are sparse. The Sickle Cell Anaemia Control Mission is one such model implemented by Jan Swasthya Sahyog, a non-profit organization in collaboration with the National Health Mission in the Anuppur district of Madhya Pradesh. This article aimed to identify the key learnings from this programme that can guide the public health system strengthening with respect to SCD. Methods The Sickle Cell Anemia Control Mission Programme included door to door screening for anaemia, SCD and blood group. SCD cases were included in the programme and other individuals with Anemia were referred for further care. Care for individuals with SCD included counselling, provision of hydroxyurea, regular follow up of clinical parameters and management of complications. Care for individuals with SCD was provided through monthly patient support group (PSG) meetings and regular outpatient /in-patient care at public health facilities. Quantitative data on programme design, screening and patient management collected during programme implementation were used for analysis. Results A total of 39421 persons were screened in 18 months (August 2018-March 2020). Of these 81.9 per cent persons were anaemic, 16.9 per cent had sickle cell trait and 779 (1.98%) had SCD. Eighty-six already diagnosed individuals joined the programme for care. People from all caste categories were diagnosed with SCD. Out of 865 individuals with SCD, 157 underwent regular 9-11 months follow up and showed improvement in clinical symptoms and drug compliance. Interpretation & conclusions Central India has a significant burden of anaemia and SCD. This study found that SCD is present in non-tribals as well. PSGs are an efficient way to deliver non-emergency care for chronic diseases such as SCD.


Assuntos
Anemia Falciforme , Assistência Integral à Saúde , Anemia Falciforme/epidemiologia , Anemia Falciforme/complicações , Anemia Falciforme/terapia , Humanos , Índia/epidemiologia , Feminino , Masculino , Hidroxiureia/uso terapêutico , Adulto , Programas de Rastreamento
10.
West Afr J Med ; 41(7): 810-817, 2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39356835

RESUMO

BACKGROUND: Haemorrhage is a leading cause of maternal mortality. The prophylactic use of tranexamic acid during vaginal delivery or caesarean section has the potential to reduce blood loss and postpartum anaemia. OBJECTIVE: To determine the effectiveness and safety of tranexamic acid in reducing blood loss during and within twenty-four hours after a caesarean section. METHODS: This was a randomised controlled study of two hundred and eighty-four (284) pregnant women booked for caesarean section at the University of Nigeria Teaching Hospital (UNTH), Ituku Ozalla, Enugu, Nigeria. The women were randomised into two groups: the intervention group (n = 142) that received intraoperative tranexamic acid with routine post-delivery oxytocin injection and the control group (n =142) that received placebo with routine post-delivery oxytocin. Blood loss was assessed both intra and post-operatively using a standard technique. RESULTS: The mean intraoperative blood loss was significantly lower in the intervention group compared to the control group (435.9±34 vs. 918±258.7, P=0.036). Similarly, the postoperative blood loss within twenty-four hours of surgery was significantly less in the intervention compared to the control group (232.71±67.4 vs. 717±317.6, P=0.031). The incidences of postoperative anaemia and blood transfusion intra or postoperatively were also significantly less in the intervention group compared to the control group (33.2% vs. 48.6; RR = 0.623; 95% CI = 0.46-0.84; p = 0.002, and 6.3% vs 24.6%: RR = 0.257; 95%CI = 0.13-0.52; P= < 0.001, respectively). There were no differences in the incidences of maternal and neonatal complications. CONCLUSION: The use of prophylactic parenteral tranexamic acid significantly reduces blood loss during and after caesarean section. It is therefore recommended in our obstetric practice as it has the potential to reduce the incidence of postpartum anaemia.


CONTEXTE: L'hémorragie est l'une des principales causes de mortalité maternelle. L'utilisation prophylactique de l'acide tranexamique lors d'un accouchement par voie basse ou d'une césarienne a le potentiel de réduire la perte de sang et l'anémie post-partum. OBJECTIF: Déterminer l'efficacité et la sécurité de l'acide tranexamique dans la réduction de la perte de sang pendant et dans les vingt-quatre heures suivant une césarienne. MÉTHODES: Cette étude contrôlée randomisée a inclus deux cent quatre-vingt-quatre (284) femmes enceintes prévues pour une césarienne à l'Hôpital Universitaire du Nigeria (UNTH), Ituku Ozalla, Enugu, Nigéria. Les femmes ont été randomisées en deux groupes : le groupe d'intervention (n = 142) qui a reçu de l'acide tranexamique en peropératoire avec une injection d'oxytocine post-accouchement de routine et le groupe témoin (n = 142) qui a reçu un placebo avec l'oxytocine de routine post-accouchement. La perte de sang a été évaluée pendant l'opération et après l'opération à l'aide d'une technique standard. RÉSULTATS: La perte de sang moyenne peropératoire était significativement plus faible dans le groupe d'intervention par rapport au groupe témoin (435,9±34 vs. 918±258,7, P=0,036). De même, la perte de sang postopératoire dans les vingt-quatre heures suivant l'opération était significativement plus faible dans le groupe d'intervention par rapport au groupe témoin (232,71±67,4 vs. 717±317,6, P=0,031). Les incidences d'anémie postopératoire et de transfusion sanguine pendant ou après l'opération étaient également significativement plus faibles dans le groupe d'intervention par rapport au groupe témoin (33,2% vs. 48,6%; RR = 0,623; IC 95% = 0,46-0,84; p = 0,002, et 6,3% vs. 24,6%: RR = 0,257; IC 95% = 0,13-0,52; P= < 0,001, respectivement). Il n'y avait pas de différences dans les incidences de complications maternelles et néonatales. CONCLUSION: L'utilisation prophylactique d'acide tranexamique parentéral réduit significativement la perte de sang pendant et après une césarienne. Il est donc recommandé dans notre pratique obstétricale, car il a le potentiel de réduire l'incidence de l'anémie post-partum. MOTS-CLÉS: Acide tranexamique, Perte de sang intrapartum, Hémorragie post-partum, Anémie.


Assuntos
Antifibrinolíticos , Perda Sanguínea Cirúrgica , Cesárea , Hemorragia Pós-Parto , Ácido Tranexâmico , Humanos , Ácido Tranexâmico/administração & dosagem , Feminino , Cesárea/efeitos adversos , Cesárea/métodos , Gravidez , Antifibrinolíticos/administração & dosagem , Adulto , Método Duplo-Cego , Nigéria , Hemorragia Pós-Parto/prevenção & controle , Perda Sanguínea Cirúrgica/prevenção & controle , Ocitocina/administração & dosagem , Adulto Jovem , Hemorragia Pós-Operatória/prevenção & controle , Hemorragia Pós-Operatória/epidemiologia , Resultado do Tratamento
12.
Nutr Res Rev ; : 1-33, 2024 Oct 08.
Artigo em Inglês | MEDLINE | ID: mdl-39376196

RESUMO

Vitamin B12, cobalamin, is indispensable for humans owing to its participation in two biochemical reactions: the conversion of l-methylmalonyl coenzyme A to succinyl coenzyme A, and the formation of methionine by methylation of homocysteine. Eukaryotes, encompassing plants, fungi, animals and humans, do not synthesise vitamin B12, in contrast to prokaryotes. Humans must consume it in their diet. The most important sources include meat, milk and dairy products, fish, shellfish and eggs. Due to this, vegetarians are at risk to develop a vitamin B12 deficiency and it is recommended that they consume fortified food. Vitamin B12 behaves differently to most vitamins of the B complex in several aspects, e.g. it is more stable, has a very specific mechanism of absorption and is stored in large amounts in the organism. This review summarises all its biological aspects (including its structure and natural sources as well as its stability in food, pharmacokinetics and physiological function) as well as causes, symptoms, diagnosis (with a summary of analytical methods for its measurement), prevention and treatment of its deficiency, and its pharmacological use and potential toxicity.

13.
BMC Pregnancy Childbirth ; 24(1): 650, 2024 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-39367334

RESUMO

BACKGROUND: Despite routine iron supplementation for pregnant women in South Africa, anaemia and iron deficiency (ID) in pregnancy remain a public health concern. OBJECTIVE: To determine the associations between iron status and birth outcomes of pregnant women attending antenatal clinic at a regional hospital in Bloemfontein. METHODS: In this cross-sectional study of 427 pregnant women, blood was taken to analyze biomarkers of anaemia (haemoglobin), iron status (ferritin and soluble transferrin receptor) and inflammation (C-reactive protein and α-1-acid glycoprotein). A questionnaire was used to collect information about birth outcomes (birth weight and gestational age at birth), HIV exposure, sociodemographics, iron supplement intake, and maternal dietary iron intake using a validated quantified food frequency questionnaire. RESULTS: The median (Q1, Q3) weeks of gestation of participants was 32 (26, 36) at enrolment. Anaemia, iron deficiency (ID), ID anaemia (IDA) and ID erythropoiesis (IDE) were present in 42%, 31%, 19% and 9.8% of participants, respectively. Median (Q1, Q3) dietary and supplemental iron intake during pregnancy was 16.8 (12.7, 20.5) mg/d and 65 (65, 65) mg/d, respectively. The median (max-min) total iron intake (diet and supplements) was 81 (8.8-101.8) mg/d, with 88% of participants having a daily intake above the tolerable upper intake level of 45 mg/d. No significant associations of anaemia and iron status with low birth weight and prematurity were observed. However, infants born to participants in the third hemoglobin (Hb) quartile (Hb > 11.3-12.2 g/dL) had a shorter gestation by 1 week than those in the fourth Hb quartile (Hb > 12.2 g/dL) (p = 0.009). Compared to pregnant women without HIV, women with HIV had increased odds of being anaemic (OR:2.14, 95%CI: 1.41, 3.247), having ID (OR:2.19, 95%CI: 1.42, 3.37), IDA (OR:2.23, 95%CI: 1.36, 3.67), IDE (OR:2.22, 95%CI: 1.16, 4.22) and delivering prematurely (OR:2.39, 95%CI: 1.01, 5.64). CONCLUSION: In conclusion, anaemia, ID, and IDA were prevalent in this sample of pregnant women, despite the reported intake of prescribed iron supplements, with HIV-infected participants more likely to be iron deficient and anaemic. Research focusing on the best formulation and dosage of iron supplementation to enhance iron absorption and status, and compliance to supplementation is recommended, especially for those living with HIV infection.


Assuntos
Anemia Ferropriva , Suplementos Nutricionais , Ferritinas , Hemoglobinas , Humanos , Feminino , Gravidez , África do Sul/epidemiologia , Adulto , Estudos Transversais , Anemia Ferropriva/epidemiologia , Anemia Ferropriva/sangue , Ferritinas/sangue , Hemoglobinas/análise , Adulto Jovem , Proteína C-Reativa/análise , Recém-Nascido , Orosomucoide/análise , Idade Gestacional , Resultado da Gravidez/epidemiologia , Biomarcadores/sangue , Complicações Hematológicas na Gravidez/epidemiologia , Complicações Hematológicas na Gravidez/sangue , Ferro/sangue , Ferro/administração & dosagem , Receptores da Transferrina/sangue , Peso ao Nascer , Ferro da Dieta/administração & dosagem , Infecções por HIV/sangue , Infecções por HIV/epidemiologia , População Urbana/estatística & dados numéricos , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/sangue
14.
Artigo em Inglês | MEDLINE | ID: mdl-39370720

RESUMO

OBJECTIVES: Anaemia is a key cause of morbidity in chronic kidney disease (CKD). Androgen deficiency (AD) in males can contribute to anaemia of all causes, including in CKD. We sought to examine the prevalence of AD in men with CKD, the extent to which it contributed to anaemia and whether it was independently associated with long-term survival. METHODS: This cross-sectional observational study was conducted among males aged 18 years and over with CKD stages 4 and 5. The study analysed morning blood samples with regard to their full blood count, urea and electrolytes, albumin, lipids, testosterone (T) and sex hormone binding globulin, with calculation of free testosterone by mass action equation. Mortality data were obtained 15 years later for survival analysis. RESULTS: Among 322 patients with a mean age of 63 years, the overall prevalence of AD was 68.9%. There was a statistically significant negative correlation between erythropoiesis stimulating agent (ESA) dose and testosterone concentrations (Pearson correlation -0.193, p = 0.05). There was a positive correlation between haemoglobin (Hb) and free testosterone level among patients not on ESA therapy (Pearson correlation 0.331, p < 0.001). Kaplan-Meier plots showed p < 0.001 on log-rank analysis, indicating that AD was significantly associated with worse survival. However, in Cox regression analysis, free testosterone was not associated with survival (95% CI for free testosterone 0.997-1.000). CONCLUSIONS: AD is highly prevalent among this population, and increases further with older age and more severe CKD warranting haemodialysis. Association of lower Hb and higher ESA dose with lower T concentration might be causative, which has important pharmaco-economic as well as clinical implications. Lower survival in men with low T, more likely reflects overall poor health rather than causation. A properly constituted randomised controlled study evaluating the effect of native T replacement is warranted in men with CKD and AD.

15.
J Physiol ; 2024 Oct 07.
Artigo em Inglês | MEDLINE | ID: mdl-39373986

RESUMO

This study investigates the role of Annexin A1 (ANXA1) in regulating T cell function and its implications in bone marrow adiposity in aplastic anaemia (AA). Utilizing single-cell sequencing analysis, we compared bone marrow tissues from AA patients and healthy individuals, focusing on T cell subgroups and their impact on bone marrow pathology. Our findings reveal a significant activation of CD8+ T cells in AA, driven by reduced ANXA1 expression. This heightened T cell activity promotes adipogenesis in bone marrow-derived mesenchymal stem cells via IFN-γ secretion. Overexpression of ANXA1 was found to suppress this process, suggesting its therapeutic potential in AA treatment. The study highlights ANXA1 as a crucial regulator in the AA-associated immune microenvironment and bone marrow adiposity. KEY POINTS: This study found that ANXA1 is significantly downregulated in AA and provides detailed insights into its critical role in the disease. The study demonstrates the excessive activation of CD8+ T cells in the progression of AA. The research shows that the overexpression of ANXA1 can effectively inhibit the activation of CD8+ T cells. The study confirms that overexpression of ANXA1 reduces the secretion of the cytokine IFN-γ, decreases adipogenesis in bone marrow-derived mesenchymal stem cells and may improve AA symptoms. This research provides new molecular targets for the treatment of AA.

16.
Malar J ; 23(1): 270, 2024 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-39243086

RESUMO

BACKGROUND: Post-discharge malaria chemoprevention (PDMC) is an intervention aimed at reducing morbidity and mortality in patients hospitalized with severe anaemia, with its effectiveness established in several clinical trials. The aim of this study was to better understand factors that would influence the scale up of this intervention, and to identify preferences for two delivery mechanisms, facility-based or community-based. METHODS: Forty-six qualitative individual interviews were conducted in five sub-Saharan countries amongst malaria key opinion leaders and national decision makers. Findings were analysed following a thematic inductive approach. RESULTS: Half of participants were familiar with PDMC, with a satisfactory understanding of the intervention. Although PDMC was perceived as beneficial by most respondents, there was some unclarity on the target population. Both delivery approaches were perceived as valuable and potentially complementary. From an adoption perspective, relevant evidence generation, favorable policy environment, and committed funding were identified as key elements for the scale up of PDMC. CONCLUSIONS: The findings suggest that although PDMC was perceived as a relevant tool to prevent malaria, further clarification was needed in terms of the relevant patient population, delivery mechanisms, and more evidence should be generated from implementation research to ensure policy adoption and funding.


Assuntos
Antimaláricos , Quimioprevenção , Malária , Malária/prevenção & controle , Quimioprevenção/estatística & dados numéricos , Quimioprevenção/métodos , África Subsaariana , Humanos , Antimaláricos/uso terapêutico , Antimaláricos/administração & dosagem , Alta do Paciente/estatística & dados numéricos
17.
Cureus ; 16(8): e66399, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39246937

RESUMO

Pica is an eating disorder defined as the compulsive and repeated ingestion of substances that have no nutritional value for at least one month. This condition may be hard to diagnose without complications, as a high degree of suspicion is needed. The subject in this case was a teenager who presented with asthenia and unspecific abdominal pain. The etiological workup showed no abnormalities other than mild anemia and iron and folate deficiencies. After a thorough anamnesis, the patient's mother mentioned sporadic ingestion of synthetic mattress foam since childhood, which had become more frequent in the previous year. With this key information, it was possible to establish a diagnosis before serious complications occurred and thus help the patient get the necessary assistance by referring them to pediatrics, nutrition, and child and adolescent psychiatry consultations. This case report highlights the importance of a detailed anamnesis, particularly when dealing with unspecific symptoms, exploring the possibility of disorders that are rarely thought of, such as pica. It also recaps how important it is to address sensitive topics like eating disorders and create an open environment with no judgment, as these attitudes are crucial to ensuring the correct diagnosis and providing the best care for patients.

18.
Eur J Case Rep Intern Med ; 11(9): 004780, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39247238

RESUMO

Background: Warm autoimmune haemolytic anaemia (wAIHA) is an acquired haemolytic disorder most commonly treated with a combination of corticosteroids, rituximab and/or splenectomy. Third-line therapies for refractory cases include immunosuppressive agents. Mycophenolate mofetil is frequently used in these scenarios, although its use is supported by small studies and anecdotal evidence rather than large-scale data. Case description: We describe three cases of refractory warm autoimmune haemolytic anaemia successfully treated with mycophenolate mofetil. Case 1: A persistent case of autoimmune haemolytic anaemia in a 56-year-old was ultimately managed with mycophenolate mofetil, leading to successful steroid tapering and stable haemoglobin levels without relapse. Case 2: A woman with a complex oncological history, including lymphoma and breast cancer, achieved remission with mycophenolate therapy, maintaining stability post-steroid treatment. Case 3: Mycophenolate proved effective for a 63-year-old with cirrhosis after recurrent autoimmune anaemia and deep vein thrombosis, enabling cessation of steroids and maintaining remission. Conclusion: Management of this condition can be challenging and balancing the available treatments is crucial to reduce potential complications from long-term therapies that appear to be ineffective. Our case series demonstrates anecdotal experience on successful use of mycophenolate mofetil for complex refractory cases of wAIHA. LEARNING POINTS: Warm autoimmune haemolytic anaemia can be a challenging condition to manage. Refractory cases that are steroid-dependent can benefit from trialling steroid-sparing agents such as mycophenolate.Anti-CD20 agents such as rituximab can be very effective in refractory cases, however there is a small percentage of patients that might not be responsive to this monoclonal antibody.Autoimmune haemolytic anaemias can be frequently complicated by thrombotic events, and part of the backbone treatment is establishing good thromboprophylaxis.

19.
Eur J Case Rep Intern Med ; 11(9): 004688, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39247244

RESUMO

Background: Castleman disease is a rare condition characterised by polytypic lymphocytes proliferation and lymphadenopathy generally with a benign course. Whereas high grade lymphoma (Richter syndrome) is a classical complication seen in chronic lymphocytic leukaemia with a poor outcome, benign conditions mimicking this entity are infrequent. Case description: We describe the case of an 81-year-old Caucasian male who developed a human herpesvirus-8 (HHV-8)-negative, idiopathic multicentric Castleman disease (iMCD) following a treated Binet C chronic lymphocytic leukaemia (CLL). The clinical and radiological pattern raised initially the suspicion of a classical Richter transformation. Blood analysis showed auto-immune haemolytic anaemia and thrombocytopenia. He had normal immunoglobulin levels. The anatomopathological analysis of a cervical adenomegaly showed hypervascularisation and a polytypic plasmocytic proliferation compatible with a plasmocytic iMCD type. Interestingly, bone marrow examination showed reticuline fibrosis but, in the absence of anasarca or generalised oedema, we were not allowed to conclude to the diagnosis of a TAFRO syndrome. We excluded all other mimicking conditions, comprising haematological malignancies, infections, and auto-immune diseases He was first treated with corticosteroids with poor results but dramatically responded to tocilizumab (anti-Il6). Conclusion: To our knowledge, this the first case described of a Castleman disease following CLL and surprisingly mimicking Richter syndrome. Clinicians should be aware of this rare misleading condition. LEARNING POINTS: Castleman disease can mimic a Richter transformation in a CLL patient.

20.
Eur J Case Rep Intern Med ; 11(9): 004749, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39247247

RESUMO

Background: Paroxysmal nocturnal haemoglobinuria (PNH) is a rare, genetic and acquired haematologic disease that causes complement-mediated intravascular haemolytic anaemia, thrombosis and bone marrow failure. Case description: A 27-year-old migrant patient attended the emergency department in a context of fever and chills over the previous few days as well as chronic fatigue, dyspnoea and chest pain. His medical history included chronic anaemia and erectile dysfunction. Initial biology showed a haemoglobin of 6.3 g/dl, platelets of 25,000/µl, total leucocytes of 3,500/µl with 1,500 neutrophils. B12 vitamin, folic acid, ferritin and thyroid stimulating hormone were normal. Lactate dehydrogenase levels were high and haptoglobin was non-measurable. C-reactive protein was 46.1 mg/l. A thick blood smear revealed Plasmodium falciparum infection with 0.1% parasitaemia. The patient was treated with an oral combination of artemether and lumefantrine. Three weeks later, the patient consulted the infectious disease department given the lack of clinical improvement. The cytopenias worsened, and lactate dehydrogenase (LDH) and reticulocytes increased. Tests for schistocytes, a thick blood smear for malaria and a direct Coombs test were negative; a myelogram was reassuring. An abdominal, pelvic and thoracic CT scan showed a mild hepatomegaly with no focal lesion and no splenomegaly or adenomegaly. A 12-colour flow cytometry unveiled a PNH clone on 90.9545% of neutrophils and 80.7371% of monocytes. Discussion: PNH patients can be vulnerable to parasites infection (such as P. falciparum) as it may trigger breakthrough haemolysis through uncontrolled resurgence of activity of the complement system. In our patient, P. falciparum infection was a confounding factor, as it commonly causes haemolytic anaemia and thrombocytopenia, and patients living in malaria-endemic regions can carry low parasitaemia while being slightly symptomatic or asymptomatic. LEARNING POINTS: Plasmodium falciparum infection can cause breakthrough haemolysis in patients with paroxysmal nocturnal haemoglobinuria.Low P. falciparum parasitemia in patients living in malaria-endemic regions is not always significant as these patients often carry acquired immunity.Patients from malaria-endemic regions presenting with severe sickness and low P. falciparum parasitemia must be assessed for other diseases, as it cannot explain heavy illness.Patients presenting with haemolytic anaemia, no schistocytes, a negative direct Coombs test and other unexplained cytopenia such as thrombocytopenia/neutropenia and other unexplained clinical manifestations such as dyspnoea, chest pain or erectile dysfunction should be assessed for paroxysmal nocturnal haemoglobinuria.

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