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γ-珠蛋白基因表达调控机制与临床应用 被引量:12
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作者 鞠君毅 赵权 《遗传》 CAS CSCD 北大核心 2018年第6期429-444,共16页
成人体内的血红蛋白是由2个α-珠蛋白和2个β-珠蛋白组成的四聚体,负责氧气的运输。珠蛋白基因在基因组中成簇分布,其表达受到多种顺式作用元件和反式作用因子的共同调控,具有高度的组织特异性和发育时序性。β-地中海贫血和镰刀型细胞... 成人体内的血红蛋白是由2个α-珠蛋白和2个β-珠蛋白组成的四聚体,负责氧气的运输。珠蛋白基因在基因组中成簇分布,其表达受到多种顺式作用元件和反式作用因子的共同调控,具有高度的组织特异性和发育时序性。β-地中海贫血和镰刀型细胞贫血是两种最常见的由于β-珠蛋白基因突变引起的常染色体隐性遗传病。γ-珠蛋白是一种主要在胎儿时期表达的类β-珠蛋白,同样具有载氧功能,但编码该蛋白的基因在上述贫血患者中却保持完好。因此,临床上优选的治疗方案之一是重新激活患者体内沉默的γ-珠蛋白基因的表达来弥补缺损的β-珠蛋白,从而缓解临床症状。目前已有多种能提高γ-珠蛋白基因表达的药物,在临床上用于治疗β-地中海贫血和镰刀型细胞贫血。随着基因组编辑技术的发展,针对这两种贫血的精准基因治疗研究也在进行中。本文着重介绍了参与γ-珠蛋白基因调控的转录因子和表观遗传修饰分子,以及目前相关的β-地中海贫血和镰刀型细胞贫血的临床治疗药物和手段,以期为深入阐明γ-珠蛋白基因的转录表达分子调控机制提供参考。 展开更多
关键词 珠蛋白 转录因子 DNA甲基化 组蛋白乙酰化 Β-地中海贫血 镰刀型细胞贫血
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Review on Hydroxyurea Usage in Young Children with Sickle Cell Disease: Examining Hemoglobin Induction, Potential Benefits, Responses, Safety, and Effectiveness
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作者 Maiko Charles Mkwambe Youping Deng Dongchi Zhao 《International Journal of Clinical Medicine》 CAS 2024年第1期1-18,共18页
Sickle cell disease (SCD) is a prevalent condition, particularly in the countries of sub-Saharan Africa, where the presence of specific genes associated with Malaria contributes to its high prevalence. Patients with s... Sickle cell disease (SCD) is a prevalent condition, particularly in the countries of sub-Saharan Africa, where the presence of specific genes associated with Malaria contributes to its high prevalence. Patients with sickle cell disease frequently experience painful episodes necessitating hospitalization, and their hemoglobin levels are typically lower than those of the general population. There are different treatment options available to manage complications, such as transfusing blood, hydroxyurea, and strong anti-pains. However, with all these treatments, patients still commonly experience pain crises and suffer from organ damage. Hydroxyurea, the sole approved medication for sickle cell anemia in developed and developing countries, is widely used in children despite being primarily indicated for adults. Multiple studies have demonstrated the efficacy of hydroxyurea in inducing HbF production in young children with SCD. Elevated HbF levels have been associated with improved clinical outcomes, including a reduction in vaso-occlusive crises, acute chest syndrome, and the need for blood transfusions. Furthermore, increased HbF levels have been shown to ameliorate disease-related organ damage, such as pulmonary hypertension and sickle cell retinopathy. The response to hydroxyurea treatment in young children with SCD is variable. Some patients achieve substantial increases in HbF levels and experience significant clinical benefits, while others may have a more modest response. Factors influencing the response include baseline HbF levels, genetic modifiers, treatment adherence, and dose optimization. Safety is a crucial consideration when using hydroxyurea in young children. Studies have shown that hydroxyurea is generally well-tolerated, with the most common adverse effects being myelosuppression, gastrointestinal symptoms, and dermatological manifestations. However,long-term effects and potential risks, such as renal dysfunction and reproductive impacts, require further investigation. The effectiveness of hydroxyur 展开更多
关键词 EFFECTIVENESS HYDROXYUREA sickle cell disease sickle cell Anemia Minimally Effective Dose Maximum Tolerated Dose
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Medical management of ischemic stuttering priapism: a :ontemporary review of the literature 被引量:7
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作者 Helen R Levey Omer Kutlu Trinity J Bivalacqua 《Asian Journal of Andrology》 SCIE CAS CSCD 2012年第1期156-163,180,共9页
Priapism is defined as a prolonged and persistent erection of the penis without sexual stimulation. This is a poorly understood disease process with little information on the pathophysiology of this erectile disorder.... Priapism is defined as a prolonged and persistent erection of the penis without sexual stimulation. This is a poorly understood disease process with little information on the pathophysiology of this erectile disorder. Complications from this disorder are devastating due to the irreversible erectile damage and resultant erectile dysfunction (ED). Stuttering priapism, though relatively rare, affects a high prevalence of men with sickle-cell disease (SCD) and presents a challenging problem with guidelines for treatment lacking or resulting in permanent ED. The mechanisms involved in the development of priapism in this cohort are poorly characterized; therefore, medical management of priapism represents a therapeutic challenge to urologists. Additional research is warranted, so we can effectively target treatments for these patients with prevention as the goal. This review gives an introduction to stuttering priapism and its clinical significance, specifically with regards to the patient with SCD. Additionally, the proposed mechanisms behind its pathophysiology and a summary of the current and future targets for medical management are discussed. 展开更多
关键词 erectile dysfunction ischemic priapism medical management recurrent priapism sickle cell disease stuttering priapism THERAPY TREATMENT
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Sickle cell retinopathy and systemic disease
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作者 Oladipupo O.Anibire Daniel ABrill Basil K.Williams Jr 《Annals of Eye Science》 2024年第2期53-61,共9页
Sickle cell disease(SCD)is a widespread hemoglobinopathy that results in significant patient morbidity and mortality.Vascular occlusion can cause acute pain,acute chest syndrome,and avascular necrosis,while hemolysis ... Sickle cell disease(SCD)is a widespread hemoglobinopathy that results in significant patient morbidity and mortality.Vascular occlusion can cause acute pain,acute chest syndrome,and avascular necrosis,while hemolysis and endothelial disruption can cause ischemic stroke,leg ulcers,pulmonary hypertension,and priapism.All ocular and orbital structures can be affected by SCD ischemic events,including orbital bone infarction,ischemic optic neuropathy,retinal artery occlusion,hyphema,secondary glaucoma,sickle cell maculopathy,and sickle cell retinopathy.Proliferative sickle cell retinopathy(PSR)is the most common cause of vision loss.Untreated PSR can lead to macular ischemia,vitreous hemorrhage,and tractional retinal detachment.Ophthalmic screening exams and multimodal imaging can lead to earlier detection of sickle cell retinopathy and improved patient outcomes.SCD patients undergoing vitreoretinal surgery may require coordination of care with hematologists to avoid ischemic complications.While hydroxyurea was the only United States Food and Drug Administration approved treatment for several decades,patients with SCD now have several more treatment options.Despite the United States screening all infants for SCD,there can be delays in diagnosis and treatment.This review article aims to provide an overview of sickle disease for the ophthalmologist,and to discuss emerging treatment options and current management of SCD ocular complications. 展开更多
关键词 sickle cell anemia sickle cell disease(SCD) sickle cell retinopathy retinal detachment vitreous hemorrhage(VH)
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Consolidation of a Femoral Neck Fracture in Sickle Cell Disease Patient after Surgical Abstention: A Beneficial and Favorable Outcome
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作者 Marc Leroy Guifo Albert Desiré Atangana Fouda +4 位作者 Faustin Atemkeng Tsatedem Emini Ngono Mengale Ntang Ulrich Bisay Souhe Ginette Kalla 《Surgical Science》 2024年第7期438-443,共6页
Femoral neck fracture is classically a traumatic pathology in the elderly but it can also occur in young people during a road traffic accident or occasionally when the femoral neck has been weakened by a pathological ... Femoral neck fracture is classically a traumatic pathology in the elderly but it can also occur in young people during a road traffic accident or occasionally when the femoral neck has been weakened by a pathological process. In sickle cell patients, the hip is often subjected to aseptic necrosis. The authors report the case of the child NL, aged 5 years and 4 months in whom a fracture of the femoral neck classified Delbet 3 was found as well as his sickle cell status discovered and in whom treatment by surgical abstention was carried out with a favorable evolution. This association of factors of the femoral head necrosis or nonunion is unusual and confirms the osteogenetic potential of a child. However, monitoring is necessary because other anomalies may reveal themselves. 展开更多
关键词 sickle cell disease Fracture Femoral Neck OSTEOMYELITIS
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Children with Sickle Cell Disease in Northern Benin: Follow up of a Cohort at the Borgou/Alibori Branch of Integrated Medical Healthcare Center for Infants and Pregnant Women with Sickle Cell Disease from 2017 to 2022
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作者 Falilatou Agbeille Mohamed Alphonse Noudamadjo +6 位作者 Médétinmè Gérard Kpanidja Yémalin Zinsou François Anikè Akinola Kpedio Clarisse Marie Chantal Bossa Julien Didier Adédémy Joseph Agossou 《Open Journal of Pediatrics》 2024年第3期445-458,共14页
Introduction: Sickle cell disease is a public health problem in sub-Saharan Africa. A national referral center for the management of infants and pregnant women with sickle cell disease (CPMI-NFED) was created three de... Introduction: Sickle cell disease is a public health problem in sub-Saharan Africa. A national referral center for the management of infants and pregnant women with sickle cell disease (CPMI-NFED) was created three decades ago in Cotonou, in the south of Benin with two regional branches including that of Parakou in the North for better access of patients to specialized care. This work is a review of five years of activities in order to describe the epidemiological, clinical, hematological and evolutionary profiles of the children followed up in the said branch. Method: This was a descriptive and retrospective cross-sectional study on the medical records of children with sickle cell disease, followed up at the regional branch of CPMI-NFED in Borgou/Alibori from June 1, 2017 to May 31, 2022. The variables studied were epidemiological, clinical, biological and evolutionary. Results: A total of 101 children with sickle cell disease were included in the study, including 78 homozygous SS (77.2%) and 23 heterozygous SC (22.8%). Their mean age at inclusion was 51.2 ± 37.6 months [6 - 204]. The sex ratio was 1.4. Vaso-occlusive crises were the main diagnostic circumstances in 42.3% of homozygotes. More than half of the children (51.5%) had a regular follow-up. The average baseline level of hemoglobin (Hb) in homozygous children was 8.8 ± 1.4 g/dl [5.8 - 11.5];and the rate of Hb S varied between 61.9 and 94.7%. In heterozygous SC children, the mean baseline level of Hb was 10.7 ± 0.6 g/dl [9.7 - 11.5]. Acute complications observed during follow-up were dominated by pneumonia and vaso-occlusive crises in both phenotypes. The overall mortality was 3% and only affected homozygous patients. Conclusion: On average, three out of four children were homozygous in our cohort. The main acute complications were infectious and vaso-occlusive. The mortality only affected homozygous carriers. Specialized follow-up has contributed to improving the quality of life of children with sickle cell disease. This could be implemented on a lar 展开更多
关键词 sickle cell disease CHILDREN CPMI-NFED Parakou BENIN
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Influence of Hemoglobin S Haplotypes on the Responses to Hydroxyurea Treatment in Children with Sickle Cell Disease in Abidjan, Côte d’Ivoire
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作者 Mireille Aye-Yayo Vincent Yapo +5 位作者 Boidy Kouakou Missa Louis Adjé Adia Eusèbe Adjambri Ebah Hermance Kassi Taïratou Kamagate Duni Sawadogo 《Open Journal of Genetics》 CAS 2024年第1期1-12,共12页
Background: In Côte d’Ivoire so far, the circulating haplotypes have been inferred on the phenotypic profiling of SCD patients. The impact of the circulating haplotypes on the use of Hydroxyurea has not been ass... Background: In Côte d’Ivoire so far, the circulating haplotypes have been inferred on the phenotypic profiling of SCD patients. The impact of the circulating haplotypes on the use of Hydroxyurea has not been assessed yet. Therefore the objective of this study is to identify in Abidjan the HbS haplotypes that modulate HU treatment responses. Methods: In a cross-sectional descriptive and analytical study, children aged 5 to 15 years with SCD, and carrying the hemoglobin phenotypes SSFA2 and SFA2, were recruited into a HU treatment cohort. Various parameters on the haplotypes and the outcomes of the treatment were analyzed. Results: Thirty nine children with SCD were included. The phenotypic profile of the cohort was 86.6% of SSFA2 and 15.4% of SFA2. Three haplotypes were found, the Benin haplotype, the Senegal haplotype, and an atypical one. The participants belonged to three genotypes, Benin/atypical (64.1%), Benin/Senegal (33.3%) and Senegal/Senegal (2.6%). Overall, HU treatment was successful in all haplotypes with 12 out of 39 patients failing treatment after 12 months in the Benin haplotype group. The association between HU treatment success and the Benin haplotype was found in terms of the decrease in the number of white blood cells and the students missing class. Conclusion: The study revealed that inferring haplotype based on the phenotypic profile could be inaccurate. The proportion of atypical haplotype that were not previously described in Côte d’Ivoire was high. All the haplotypes seemed to be associated with HU treatment success but some patients with Benin haplotype did not respond well. 展开更多
关键词 sickle cell disease CHILDREN HAPLOTYPE HYDROXYUREA Côte d’Ivoire
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Study of the Mineral Element Status in Sickle Cell Patients Attending the Mixed Medicine and Sickle Cell Anemia Center “Yolo Mabanga” in Kinshasa in Democratic Republic of the Congo
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作者 Misengabu Mbuyamba Nicole Inkalaba Kasasuka Guelord +1 位作者 Ilunga Kabengele Alain Kodondi Kule-Koto Fridolin 《Journal of Biosciences and Medicines》 2024年第8期1-12,共12页
Introduction: Sickle cell disease, also called sickle cell anemia, is a genotypic disorder prevalent in the black population;it is characterized by a hemolytic type anemia and can worsen following a deficiency of copp... Introduction: Sickle cell disease, also called sickle cell anemia, is a genotypic disorder prevalent in the black population;it is characterized by a hemolytic type anemia and can worsen following a deficiency of copper, zinc and serum iron. Methods: It was a question of evaluating the plasma status of copper and zinc by the photometric method, serum iron was measured by spectrophotometry, and finally ferritin and transferrin were measured by the immunoenzymatic method;in subjects with sickle cell disease and healthy subjects of all ages followed at the mixed medicine and sickle cell anemia center in Kinshasa (CMMASS). Results: A total of 60 subjects participated in this study. The sex ratio was 1.30;the average age of sickle cell patients was 7.4 years ± 3.8 and 27.4 years ± 5.1;for the control group, the average age was 8.2 years ± 4.2 and 29 years ± 6.7. 13.3% of children with sickle cell disease presented hypocupremia and 13.3% hypercupremia. For adults with sickle cell disease, 26.7% had hypocupremia and 13% had hypercupremia. Regarding zincemia, 67% of children and adults with sickle cell disease presented hypozincemia;60% of child subjects with sickle cell desease demonstrated hyposideremia;in adults with sickle cell desease 20% have hyposideremia and 13% have hypersideremia. Conclusion: Our results demonstrate not only the effective presence of iron overload in adult sickle cell patients, but also an iron deficiency in controls and sickle cell patients, ignoring hemolysis. . 展开更多
关键词 Mineral Elements sickle cell disease CMMASS
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Clinical and Bacteriological Profile of Infections in Sickle Cell Children in Two Referral Hospitals in Niamey, Niger
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作者 Kamaye Moumouni Samaila Aboubacar +11 位作者 Garba Moumouni Georges Thomas Ibrahim Mamoudou Abdou Djafar Mamane Halima Hamadou Ibrahim Hamani Issaka Djibrilla Almoustapha Amadou Yacouba Abdourahamane Marou Soumana Boubacar Moussa Saley Sahada Bade Malam Abdou Soumana Alido 《Open Journal of Pediatrics》 2024年第1期36-42,共7页
Introduction: Infections are significant causes of mortality in sickle cell children in resource-limited countries. This study aimed to determine the clinical profile and bacterial ecology of infections in children wi... Introduction: Infections are significant causes of mortality in sickle cell children in resource-limited countries. This study aimed to determine the clinical profile and bacterial ecology of infections in children with sickle-cell disease in two referral hospitals in Niamey. Patients and methods: A retrospective descriptive study was conducted from January 2018 to July 2020 in two referral hospitals in Niamey. All children aged one (1) to 15 years with sickle cell disease admitted for suspected infection, including at least one bacterial culture, were studied. Bacteriological analysis was performed using the appropriate culture media, using BactAlert (Reference 4700003 BTA3D60 BioMérieux). Results: Over 36-months, 350 children with a mean age of 10.9 months were admitted. The sex ratio was 1.2. The SS electrophoretic profile was the most common (93.4%). Immunization status was up to date in 66% of patients. Fever was the common reason for consultation (55.1%). Infection was confirmed in 62 patients (17.7%). The primary diagnoses were bacterial gastroenteritis (24.2%) and urinary tract infection (19.4%). Blood cultures were isolated from Salmonella typhi (13.0%) and Escherichia coli (8.7%). Klebsiella spp (7.1%) and Escherichia coli (5.0%) were detected in cytobacteriological examination of urine. Salmonella typhi (23.5%) and Escherichia coli (5.9%) were isolated on coproculture. Conclusion: Bacterial ecology appears not different from that usually observed in sickle-cell children. Salmonella and Escherichia coli were predominant. 展开更多
关键词 sickle cell disease CHILD INFECTION NIGER
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Predictive Factors of Renal Damage during Sickle Cell Disease at the Hematology-Oncology Department of Donka University Hospital
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作者 Moussa Traoré Ansoumane Sayon Kanté +7 位作者 Marthe Sidibé Mamady Diakité Mohammed Lamine Tégui Camara Foussény Diakité Mamadou Saliou Baldé Ibrahima Chérif Mustapha Komrabai-Kanu Mohammed Lamine Kaba 《Open Journal of Nephrology》 2024年第3期302-312,共11页
Introduction: Sickle cell disease, which is the most common hereditary hemoglobinopathy in the world, attacks all body systems, particularly the kidneys. The view of this study was to investigate the predictive factor... Introduction: Sickle cell disease, which is the most common hereditary hemoglobinopathy in the world, attacks all body systems, particularly the kidneys. The view of this study was to investigate the predictive factors of kidney damage during sickle cell disease. Materials and methods: It was a retrospective, descriptive and analytical study on files of sickle cell patients hospitalized in the Hematology-Oncology Department of Donka University Hospital during a period from January 1, 2016 to December 31, 2019. Records of sickle cell patients with one or more renal abnormalities were retained. Sickle cell patients without kidney damage were also selected for a comparative study. Only patients without sickle cell disease were excluded. Results: Seventy-five (75) medical records were collected during the study period. From these cases, thirteen (13) records with kidney disease were observed, a frequency of 17%. The mean age of patients was 24.2 years for extremes of 10 and 65 years. The sex ratio was 1.6 in favor of men. The SSFA2 form was the most represented with 92%. 24-hour proteinuria was measured in 13 patients between whom 6 patients (46.2%) had a proteinuria level ≤ 1 g. Eight (8) patients (61.5%) were in stage 1 of chronic kidney disease. The most common type of renal involvement was tubulo-interstitial nephropathy with 8 patients (61.5%). Bivariate analysis showed that elevated serum creatinine (P 2 form of the sickness (P Conclusion: After the observation of an increased serum creatinine and urea, a predominance observation of the SSFA2 form, it should be possible to target patients for whom screening for kidney damage should henceforth be systematic. 展开更多
关键词 Kidney Damage Predictive Factors sickle cell disease Donka
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Nutritional Profile of Children with Major Sickle Cell Syndrome at the Centre of Medical and Health Advice of Kipé, Conakry, 2018
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作者 Mamadou Aliou Doukoure Ibrahima Sory Diallo +7 位作者 M’mah Aminata Bangoura Amadou Oury Toure Mamadou Moustapha Diop Fatoumata Binta Diallo Mohamed Sama Cherif Thierno Saidou Diallo Saidouba Cherif Camara Abdoulaye Toure 《Case Reports in Clinical Medicine》 2024年第3期73-84,共12页
Introduction: Growth is a reflection of a child’s health and nutritional status. Children with sickle cell disease often have slower statural and weight development. The aim of this study was to evaluate the nutritio... Introduction: Growth is a reflection of a child’s health and nutritional status. Children with sickle cell disease often have slower statural and weight development. The aim of this study was to evaluate the nutritional profile of children with sickle cell disease (SCD) registered in the CEMECO centre database. Methodology: This was a cross-sectional study with simple random sampling of children aged 1 to 16 years registered in the clinic database. Results: We collected information on 208 children, 121 of whom had sickle cell disease and 87 of whom were normal, with a sex ratio of 1.02. The mean age of the sickle cell patients was 8.7 ± 4.4 years, while that of the non-sickle cell patients was 9.5 ± 4 years. Haemoglobin electrophoresis revealed 103 homozygous (SS), 18 double heterozygous (SC, SBetaThal, SE) and 87 normal (AA) and/or sickle cell trait (AS) sickle cell cases. We observed a significant difference in the height/age ratio (P ¥). Conclusion: The results of our study revealed stunted growth in children with sickle cell disease. 展开更多
关键词 sickle cell disease NUTRITION Growth Puberty GUINEA
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Comparative Study of Neurosurgical Complications of Thalassemia and Sickle Cell Disease
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作者 Léon Boukassa Didace Massamba Miabaou +5 位作者 Hugues Brieux Ekouélé Mbaki Sinclair Brice Kinata Bambino Olivier Brice Ngackosso Rel Boukaka Kala Gédéon Colin Thouassa Ruth Ibara Wamé 《Open Journal of Modern Neurosurgery》 2024年第3期190-202,共13页
Introduction: Sickle cell disease and thalassemia are the most frequent hemoglobinopathies. During their evolution, they present certain complications, among which are two neurosurgical emergencies, namely spontaneous... Introduction: Sickle cell disease and thalassemia are the most frequent hemoglobinopathies. During their evolution, they present certain complications, among which are two neurosurgical emergencies, namely spontaneous cranial epidural hematoma and non traumatic radiculo-medullary compression, with some particularities for each. Method: In order to highlight these particularities, we compared the characteristics of these two complications, from a number of publications reported between 2000 and 2021. Results: Sickle cell disease was complicated by spontaneous cranial epidural hematoma. Forty-two cases were reported, the mean age was 14.7 years (2 - 21 years) and the sex ratio was 6.4. The clinical presentation combined, in a non-traumatic context, signs of intracranial hypertension with those of neurological focalization. Neuroimaging showed epidural-type collection, often frontal and parietal in location. The incriminating mechanisms were ischemia, hemorrhage and extra medullary hematopoiesis. The treatment was surgical. Non traumatic radiculo-medullary was the complication of thalassemia. Of the 77 cases reported, the mean age was 27.5 years (9 - 66 years) and the sex ratio was 4.1. The lesions were epidural with a clear thoracic predominance and resulted from extra marrow hematopoiesis. Treatment included: hypertransfusion, radiotherapy, hydroxyurea and surgery. Vital and functional prognosis were globally satisfactory when the management was rapid. Conclusion: Cranial and spinal epidural lesions, respective complications of sickle cell disease and thalassemia, result from similar mechanisms. Their prognosis depends on the rapidity of management. . 展开更多
关键词 HEMOGLOBINOPATHY sickle cell disease THALASSEMIA Spontaneous Epidural Hematoma Extra Marrow Hematopoiesis Slow Marrow Compression
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Psychological Experience of Mothers of Children with Sickle Cell Disease Followed at the Pediatric Department of Bouaké University Teaching Hospital
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作者 Akanji Iburaima Alamun Aka-Tanoh Koko Aude Hélène +5 位作者 Yao Kouassi Christian Adou Leioh Romeo Sahi Gnantin Josette Landryse Amani Ehi Alexise Eleonore Boune Aboulaye Asse Kouadio Vincent 《Open Journal of Pediatrics》 2024年第1期149-163,共15页
Introduction: Sickle cell disease has physical and emotional repercussions on the child and his family. The aim of this study was to describe the psychosocial experiences of mothers of children with sickle cell diseas... Introduction: Sickle cell disease has physical and emotional repercussions on the child and his family. The aim of this study was to describe the psychosocial experiences of mothers of children with sickle cell disease in order to improve the overall care of the child. Methods: This was a descriptive cross-sectional study carried out in the pediatrics department of Bouaké University Teaching Hospital from June to September 2023. It focused on mothers of major sickle-cell-affected children followed up in the pediatrics department of the Bouaké University Teaching Hospital. The variables studied were sociodemographic, psychological, social and economic. Results: Of the 40 mothers surveyed, 15% were not in school and 32.5% were unemployed. For them, sickle cell disease was of natural (genetic) origin in 90% and supernatural in 10%. They stated that the child had an average age of 36 months (extremes 7 and 108 months) when the disease was discovered. And 52% of them were satisfied with the way the disease was clearly and completely announced. Following the announcement, the questioned mothers said they had felt shock (35%), sadness (31.7%), guilt (23.3%) and discouragement (10%). Anxiety and depression were experienced by 77.5% and 22.5% respectively. In 60% of cases, they stated that the disease was incurable, and the outcome was fatal in 2.5% of cases. The child’s illness was a source of problems in the home in 25% of cases, represented by arguments in 92% and divorce in 8%. In 97.5% of cases, the mother told her family and friends about the child’s illness. In 90% of cases, the mother and child benefited from psychological support from family and friends. Conclusion: Sickle cell disease is a serious illness with a psychological and social impact on mothers. We recommend psychological support for mothers from the moment of diagnosis and throughout follow-up. 展开更多
关键词 Psychosocial Experience sickle cell disease Côte d’Ivoire
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Suicidal Behaviours in Sickle Cell Patients at the Douala Sickle Cell Care Centre in Cameroon
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作者 Christian Eyoum Léonce Kengno Kologne +15 位作者 Charlotte Eposse Ekoube Annick Mélanie Magnerou Joséphine Manga Befolo Cindy Laura Ndepa Daniel Gams Massi Aurore Nzesseu Djomo Guy Jonas Basseguin Atchou Guy Calvin Mbongo’O Rihta Mbono Mbekoto Iyawa Hassanatou Fabiola Tchouankeu Kounga Christiane Medi Sike Josiane Essola Jacques Narcisse Doumbe Erero Njiengwe Callixte Kuate Tegueu 《Open Journal of Psychiatry》 2024年第3期265-281,共17页
Introduction: Sickle cell anaemia is a hereditary disease that combines physical and psychological manifestations, including suicidal tendencies. So far, to our knowledge, no study has been conducted on suicidal behav... Introduction: Sickle cell anaemia is a hereditary disease that combines physical and psychological manifestations, including suicidal tendencies. So far, to our knowledge, no study has been conducted on suicidal behaviours among people with sickle cell disease in Cameroon. This is what justifies our study on the prevalence and factors related to suicidal behaviors in our study population. Methods: We conducted a cross-sectional, analytical study of 171 sickle cell patients aged from 12 years upwards who came to the sickle cell disease care service of the Laquintinie Hospital in Douala, over a period of 6 months, that is, from 1 January to 31 June 2022. Data were collected using a structured questionnaire with questions on suicidal behaviours based on the “MINI” (Mini International Neuropsychiatric Interview). The data were processed using the SPSS 26.0 software. The related factors were studied in both a bivariate and multivariate analysis. Results: Female sickle cell patients accounted for 60.2% of the sample. The mean age was 23.36 ± 8.42 years. Suicidal ideation was prevalent in 56% of cases and 13% attempted suicide. The factors most associated with suicidal ideation were: primary level of education (OR = 0.08 (0.09 - 0.79);p = 0.03), feeling unworthy of life (OR = 0.40 (0.08 - 1.96);p = 0.02), not often being considered by those around them (OR = 2.97 (1.26 - 6.99);p = 0.01), lack of family support (OR = 0.34 (0.15 - 0.77);p = 0.01). Meanwhile, the factors associated with suicide attempts were: the fact of being rarely exposed to suicide-related media (OR = 4.17 (1.40 - 71.80);p = 0.03), and a constant feeling of sadness when returning home (OR = 18.02 (1.59 - 20.55);p = 0.01). Conclusion: More than half of sickle cell patients had had suicidal thoughts and 1/6 had made at least one suicide attempt, women and young adults being the most concerned. It is therefore necessary to ensure optimum psychological care for patients with sickle cell disease. 展开更多
关键词 sickle cell disease Suicidal Behaviours SELF-HARM
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Pregnancy Preferences in Females of Reproductive Age with Sickle Cell Disease at Laquintinie Hospital: A Cross-Sectional Analysis
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作者 Eposse Ekoube Charlotte Jeannette Disso Massako +14 位作者 Mangala Fulbert Nkwele Mandeng Ma Linwa Edgar Puepi Djike Yolande Merlin Boten Bounyom Erero F. Njiengwe Épée Patricia Hassanatou Iyawa Dora Mbonjo Bitsie Emmanuel Heles Nsang Soumaiyatou Abba Ngo Linwa Esther Eleonore Ndolo Kondo Astrid Grâce Tocki Toutou Moustapha Bilkissou Essome Henri 《Open Journal of Obstetrics and Gynecology》 2024年第5期744-757,共14页
Introduction: Females with sickle cell disease (SCD), despite having a delayed pubertal development, are subject to many worries relating to their abilities to conceive, their capacity to maintain a maternofetal-risk-... Introduction: Females with sickle cell disease (SCD), despite having a delayed pubertal development, are subject to many worries relating to their abilities to conceive, their capacity to maintain a maternofetal-risk-free pregnancy till term and give birth to healthy children without sickle cell disease. Knowing that unplanned pregnancies are more likely to increase maternofetal morbidity and mortality, we sought out to explore the pregnancy preferences in female patients with sickle cell disease to promote healthy conception and childbirth in this vulnerable population. Methodology: We conducted a cross-sectional study involving female patients of child-bearing age with sickle cell disease followed at Laquintinie Hospital Douala or who were members of a local sickle cell association. Pregnancy preferences were determined using the Desire to Avoid Pregnancy (DAP) scale. Factors associated with pregnancy preferences were determined using multivariable linear regression model. Threshold for significance was set at p Results: Seventy-seven patients were included with a mean age of 24.71 ± 5.53 years. Forty patients (51.95%) had one sexual partner and thirteen women (32.5%) used contraceptive methods. Most patients (46.0%) responded “Strongly Agree” or “Agree” to the statement “it would be a good thing for me if I became pregnant in the next 3 months”. The mean DAP score was 1.63 ± 0.91 [1.28 ± 0.82 in those who had a sexual partner and 1.99 ± 0.86 in those who had no sexual partner]. Factors that were positively associated with DAP score were students (b = 0.32, 95% CI [0.21, 0.95], p = 0.003), monthly income ≥ 100,000 FCFA (b = 0.24, 95% CI [0.07, 0.81], p = 0.022), and not having a sexual partner (b = 0.26, 95% CI [0.11, 0.85], p = 0.012). Conclusion: Most female patients with SCD have a low desire to avoid pregnancy. This is especially true for patients who are not students, have a partner and have a low monthly income. 展开更多
关键词 Pregnancy Preferences sickle cell disease Laquintinie Hospital CAMEROUN
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Aqueous Extract of Ceiba pentandra Stimulates the Production of Fetal Hemoglobin in Sickle Cell Patients
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作者 Marie Miezi Nsimba Magain Barihuta Mihatano +4 位作者 Blaise Maya Mbamu Aline Diza Lubongo Thoms Nzaji Kolombo Josué Matadi Mukengeshaie José Nzunzu Lami 《Journal of Biosciences and Medicines》 2024年第8期295-306,共12页
Subsequent studies have demonstrated the reversed activity of the aqueous extract of Ceiba pentandra on the deformity of sickled red blood cells in hypoxia conditions. The observation which related to an in vitro stud... Subsequent studies have demonstrated the reversed activity of the aqueous extract of Ceiba pentandra on the deformity of sickled red blood cells in hypoxia conditions. The observation which related to an in vitro study had given rise to hopes as to the management of sickle cell disease (SCD) by the use of this plant species. In this paper, the authors aimed to investigate the effect of the aqueous extract of C. pentandra on the production of fetal hemoglobin in SCD patients. The work carried out hemoglobin electrophoresis, for a period of six months, on blood samples from SCD patients who voluntarily undergone routine treatment, based on the medicinal recipe prepared from the bark of the trunk and branches of C. pentandra, in a hospital center of herbal medicines located in Kinshasa. The medicinal recipe called BEAT-SS is a patented product of the hospital center named Centre de Phytothérapie Moderne NIECA. Blood samples from patients under treatment were taken to evaluate the behavior of different forms of hemoglobin (hemoglobin S, hemoglobin F and hemoglobin A2). Agarose gel electrophoresis with integrated reading was used for the separation of the different forms of hemoglobin, as well as their dosage on each sample of sickle blood. A reduction in the proportion of hemoglobin S and an increase in the proportion of fetal hemoglobin were found in all sickle cell patients during the treatment period. This observation could affirm that the management of sickle cell patients using the recipe prepared from the aqueous extract of C. pentandra could increase the level of fetal hemoglobin in these patients. 展开更多
关键词 sickle cell disease Hemoglobin S Fetal Hemoglobin Ceiba pentandra
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Hematological Malignancies in Sickle Cell Disease Patients: Report of Four Cases in Togo and Literature Review
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作者 Padaro Essohana Guedenon M. Koffi +4 位作者 Magnang Hèzouwè Womey M. C. Kodzovi Layibo Yao Kalaissi Mandjamana Agate R. Pikiliwè 《Open Journal of Blood Diseases》 2024年第1期31-41,共11页
Background: Hemopathies were rarely observed in major sickle cell disease patients some thirty years ago, probably due to the high mortality rate among the latter as a result of progressive complications. Thanks to ad... Background: Hemopathies were rarely observed in major sickle cell disease patients some thirty years ago, probably due to the high mortality rate among the latter as a result of progressive complications. Thanks to advances in the management of sickle cell disease, patients' life expectancy has increased considerably, exposing them more frequently to neoplasia, including hematological malignancies. The increased risk of leukemogenesis is multifactorial and linked to the pathophysiological mechanisms of the clinical manifestations of sickle cell disease. Study Setting: The clinical haematology department of campus teaching hospital and the paediatric onco-haematology unit of Sylvanus Olympio teaching hospital in Lomé were used as study settings. Observations: Four hematologic malignancies were collected in a cohort of 5847 major sickle cell syndromes. The median age of the patients was 31.25 years (extremes: 14 and 58 years) and they were predominantly female (sex ratio M/F = 0.25). Two were on background therapy with hydroxyurea. Among the four patients, there were two cases of acute lymphocytic leukemia, including ALL3 in a 58-year-old SS woman and T-ALL2 in a 12-year-old SC. Then, a case of lymphocytic lymphoma in a 20-year-old SS man was reported and finally a case of chronic myelocytic leukemia in a 33-year-old woman of Sβ+ thalassaemia phenotype. Conclusion: To further report this coexistence, it is therefore essential to systematically consider hematological malignancies during major sickle cell syndromes even if there are similarities in the symptomatology of these two serious pathological situations. 展开更多
关键词 Hematological Malignancies sickle cell disease Lomé-Togo
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Asthma Attack Revealing Sickle Cell Disease
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作者 Khaoula Achir Ilham Tadmori Moustapha Hida 《Open Journal of Pediatrics》 2024年第5期865-868,共4页
Sickle cell disease is a genetic disorder characterized by the presence of hemoglobin S (HbS) and a significant reduction in normal hemoglobin A (HbA) in red blood cells. In deoxygenated conditions, HbS molecules poly... Sickle cell disease is a genetic disorder characterized by the presence of hemoglobin S (HbS) and a significant reduction in normal hemoglobin A (HbA) in red blood cells. In deoxygenated conditions, HbS molecules polymerize, causing vascular occlusions and hemolysis. Pulmonary complications associated with this disease result from vascular occlusion, ischemia-reperfusion, and inflammation. Literature reports that asthma is observed in 30% to 70% of patients with sickle cell disease. We present the case of a boy whose sickle cell disease diagnosis was established following an asthma attack. 展开更多
关键词 sickle cell disease ASTHMA MORBIDITY
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沃塞洛托的合成工艺研究 被引量:3
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作者 唐文强 仝红娟 +2 位作者 刘斌 徐小娜 门靖 《中国药物化学杂志》 CAS 2023年第1期21-24,共4页
目的改进沃塞洛托的合成工艺。方法以2,6-二羟基苯甲酸(2)为起始原料,与丙酮反应得到5-羟基-2,2-二甲基-4H-苯并[d][1,3]二氧六环-4-酮,其与3-溴丙烯反应得到5-(烯丙氧基)-2,2-二甲基-4H-苯并[d][1,3]二氧六环-4-酮,经DIBAL-H还原得到2-... 目的改进沃塞洛托的合成工艺。方法以2,6-二羟基苯甲酸(2)为起始原料,与丙酮反应得到5-羟基-2,2-二甲基-4H-苯并[d][1,3]二氧六环-4-酮,其与3-溴丙烯反应得到5-(烯丙氧基)-2,2-二甲基-4H-苯并[d][1,3]二氧六环-4-酮,经DIBAL-H还原得到2-(烯丙氧基)-6-羟基苯甲醛,再经羟烷基化反应得到2-(烯丙氧基)-6-{[2-(1-异丙基-1H-吡唑-5-基)吡啶-3-基]甲氧基}苯甲醛,最后脱除烯丙基保护基得到沃塞洛托。结果与结论目标化合物及其中间体的结构经^(1)H-NMR和ESI-MS谱确证,总收率为64.3%(以化合物2计),纯度为98.3%(HPLC法)。本工艺操作简便,原料价廉易得,适合工业化生产。 展开更多
关键词 沃塞洛托 镰状细胞疾病 工艺优化
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Evaluation of Suicidal Risk in Sickle Cell Patients Monitored at the Hubert Koutoukou Maga National University Hospital Center in Cotonou in 2022
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作者 Guy-Gérard Aza-Gnandji Ireti Nethania Elie Ataïgba +3 位作者 Sènan Gratias Koukoubou Kokou Messanh Agbémèlé Soedje Tchedié Etdéchié Elvyre Klikpo Josiane Ezin Houngbe 《Open Journal of Psychiatry》 2023年第S2期479-491,共13页
Introduction: According to the WHO, suicide is a real public health problem worldwide, and several risk factors have been identified, including pain and chronic illness. Objective: The aim of this study was to assess ... Introduction: According to the WHO, suicide is a real public health problem worldwide, and several risk factors have been identified, including pain and chronic illness. Objective: The aim of this study was to assess the suicidal risk in sickle-cell patients. Method: This was a descriptive and analytical cross-sectional study of sickle-cell patients followed up at the University Clinic of Blood Diseases of Hubert Koutoukou Maga National University Hospital Center from August 2022 to November 2022. The instrument used was the Ducher suicide risk self-assessment scale. Results: A total of 65 patients were included. Mean age was 27.04 ± 1.95 years, with extremes of 16 and 50 years, and a peak of 47.69% in the 20 - 30 age group. Women predominated (58.46%), with a sex ratio of 0.71. Somatic complaints accounted for 41.54% of patients’ visits, including 21.54% for pain. Suicidal risk was positive in 44.62%, including 13.85% for severe suicidal risk, and 20% attributed their desire to die to pain. The factor associated with positive suicidal risk was single parenthood (p = 0.02). Of those with a positive suicidal risk, 46% had shared the intention with close relatives (family and friends), but none had used medical services. Conclusion: These data demonstrate the high prevalence of suicidal risk among people with sickle cell disease, and therefore the need for psychosocial intervention in this specific population in Benin. 展开更多
关键词 Suicidal Risk sickle cell disease Chronic disease
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