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Assessment of the Level of Knowledge about Chronic Renal Failure in 271 Hypertensive Patients in Brazzaville

Open Journal of Nephrology 2024年第1期14卷 25-36页

作者： Daniel Tony Eyeni Sinomono Ange Niama Gaël Honal Mahoungou éric gandzali-ngabé Ndinga Berline Ngoma Precieux Dalia Mboungo richard Loumingo Department of Nephrology University Hospital Center Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo Department of Public Health Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo

Background and Objectives: Chronic kidney disease (CKD) is now a global public health problem. In low- and middle-income countries such as the Congo, access to dialysis is low and inequitable. The prevention of CKD involves raising awareness among patients at risk, such as those suffering from arterial hypertension (AH), by improving their knowledge of CKD. The objectives of our work were to determine the level of knowledge about CKD among hypertensive patients and to identify the factors associated with a low level of knowledge. Methodology: We conducted a 3-month descriptive and analytical cross-sectional study from 1 August to 30 October 2023 in 3 large public hospitals in Brazzaville (capital of the Republic of Congo). We included: hypertensive patients aged 18 and over who had freely consented to participate in our study and were able to answer the questions on the survey form. Patients with known hypertension who had been followed for less than 3 years and those with known chronic renal failure were not included. Results: The mean age was 58.4 ± 14.4 years (29 - 88 years). There were 121 men and 150 women (sex ratio = 0.8). All the patients were educated;37.2% with a higher level of education and 13.6% with primary education. 24 patients (9%) had a good level of knowledge about CKD and 153 (56%) had poor knowledge. A good level of knowledge was associated with the duration of hypertension, intellectual level and the existence of associated heart disease. Conclusion: Our study reveals a significant lack of knowledge about chronic kidney disease among hypertensive patients in Brazzaville.

关键词： Knowledge Chronic Renal Failure Hypertensives Brazzaville

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Clinical, Etiological and Progressive Aspects of Acute Tubular Necrosis of Toxic Origin at the Brazzaville University Hospital Center

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Open Journal of Nephrology 2023年第4期13卷 464-471页

作者： Daniel Tony Eyeni Sinomono Gaël Honal Mahoungou éric gandzali-ngabé Berline Ndinga Précieux Ngoma Dalia Mboungou richard Loumingou Tarik Sqalli Houssaini Department of Nephrology Faculty of Health Sciences Marien Ngouabi University Brazzaville Republic of the Congo Department of Nephrology Hassan II University Hospital Center of Fes Fes Morocco

Background and Objectives: Acute tubular necrosis (ATN) is the second cause of acute kidney injury (AKI) in an intra-hospital environment. The toxic origin is avoidable. Our objectives were to determine the toxic substances at the origin of ATN at the Brazzaville University Hospital and determine the evolving aspects and the factors associated with it. Patients and Methods: We carried out a 12-month from June 20, 2022 to June 30, 2023. It was a prospective observational study in the Nephrology Department of Brazzaville University Hospital Center. The diagnosis of ATN was done in the presence of AKI occurring in the context of taking nephrotoxic substances with negative albuminuria. Cases of ATN aggravating CKD were excluded. Data analysis was done with Epi-Info 7.2 software. Results: We identified 63 cases of AKI on toxic ATN. Their average age was 47 ± 19 years with a male predominance of 60.2%. The 3 main toxicants incriminated were: herbal medicine (49.2%), Gentamycin (17.5%) and non-steroidal anti-inflammatory drugs (14.3%). An indication for hemodialysis was made in 43 patients (68.2%), the evolution was marked by a cure in 29 patients (46.1%), 10 (15.9%) became chronic kidney failure, 19 (30.1%) died, 5 (7.9%) were lost to follow-up. The main factor for non-healing is anuria (p Conclusion: The main cause of toxic ATN at Brazzaville University Hospital is herbal medicine. The death rate is high there.

关键词： Brazzaville Acute Tubular Necrosis Toxic

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Epidemiological, Clinical, Therapeutic, and Evolutionary Aspects of Chronic End-Stage Renal Failure in the Nephrology Department of the University Hospital of Brazzaville in 2023

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Open Journal of Nephrology 2024年第1期14卷 62-69页

作者： Gaël Honal Mahoungou Daniel Tony Eyeni Sinomono Éric Ngandzali-ngabé Soraya Ntandou Francky Ambounou Précieux Ngoma Berline Ndinga Dalhia Mboungou Héléna Botokoto Bothard Hardy Ibovi richard Loumingou Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo Department of Nephrology University Hospital of Brazzaville Brazzaville Congo

Objective: Chronic end-stage renal failure is a major public health problem in developing countries and is poorly documented. The objective of this study was to describe the epidemiological, diagnostic, therapeutic, and evolutionary aspects of patients admitted for end-stage renal failure to the Department of Nephrology at the University Hospital of Brazzaville. Patients and Methods: This was a descriptive cross-sectional study collecting prospective data that took place over 10 months. We included 128 patients who were exhaustively identified. Sociodemographic, clinical, therapeutic and developmental data were collected using a standardized and pretested pre-established survey form. The EPI info software enabled the analysis and processing of the data. Results: We reported a male predominance with a sex ratio of 2.5. The median age was 50 years. The first cause found was diabetes (55%) followed by hypertension (46%). The majority of patients had a dialysis emergency and half could not be dialyzed for financial reasons. Conclusion: Our results highlighted that certain epidemiological parameters of end-stage renal failure are constantly changing, such as frequency, while others remain static, including the main etiologies, gender, and age. However, mortality continues to increase and deserves more attention.

关键词： ESRD Epidemiology Nephrology University Hospital of Brazzaville

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Acute Kidney Injury in the Nephrology Department of the Brazzaville University Hospital: Epidemiological, Clinical and Evolutionary Aspects

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Open Journal of Nephrology 2024年第2期14卷 196-215页

作者： Daniel Tony Eyeni Sinomono Gael Honal Mahoungou Eric Gabdzali ngabé Audrey Missamou Mavi Bouloupy richard Loumingou Department of Nephrology Brazzaville University Hospital Brazzaville Congo Department of Nephrology Adolphe Ciss General Hospital Pointe Noire Congo

Introduction: Acute kidney injury (AKI) is defined as a sudden and reversible deterioration in renal function. It is a life-threatening condition in hospitalized patients. Our objectives were to determine the prevalence of AKI in a nephrology department, list the causes, describe the evolutionary profile and identify the factors associated with death. Patients and Methods: We reviewed the records of patients hospitalised between 1 January 2016 and 31 October 2020 in the nephrology department of Brazzaville University Hospital. We included patients aged at least 18 years whose discharge diagnosis included the item AKI. Study variables were socio-demographic data, clinical and paraclinical signs, stage and type of AKI, etiology and evolutionary profile. Results: Of the 1823 patients hospitalised, 244 (13.38%) were hospitalised for AKI. Of these, 60.2% were boys and 39.8% girls, with an average age of 47 19 years. The average consultation time was 10 6.5 days. AKI was stage 3 in 69.57% of cases. It was functional, organic and obstructive in the order of 55.28%, 36.02% and 8.69%. Dialysis was indicated in 62 patients (38.51%) and performed in 24 patients (14.9%). In-hospital mortality was 27.95%, with an average hospital stay of 9.6 5.8 days. Metabolic acidosis and anemia were the main causes of death in 14.28% and 4.35% of patients respectively. Factors associated with death were male sex, socioeconomic level, coma, indication for dialysis and absence of dialysis, with a p Conclusion: AKI is more common in young adult males. Mortality is relatively low. Improving prognosis requires early management and access to dialysis.

关键词： AKI Epidemiology Diagnosis Evolution Brazzaville

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Two imprinted genes primed by DEMETER in the central cell and activated by WRKY10 in the endosperm

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Journal of Genetics and Genomics 2024年第8期51卷 855-865页

作者： Ke Yang Yuling Tang Yue Li Wenbin Guo Zhengdao Hu Xuanpeng Wang Frédéric Berger Jing Li College of Life Science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China Sanya Institute of Breeding and Multiplication Hainan UniversitySanyaHainan 572025China School of Tropical Agriculture and Forestry Hainan UniversityHaikouHainan 570228China Hainan Yazhou Bay Seed Laboratory SanyaHainan 572025China Gregor Mendel Institute Austrian Academy of SciencesVienna BioCenter1030 ViennaAustria

The early development of the endosperm is crucial for balancing the allocation of maternal nutrients to *** process is believed to be evolutionarily associated with genomic imprinting,resulting in parentally biased allelic gene *** Fertilization Independent Seed(FIS)genes,the number of imprinted genes involved in early endosperm development and seed size determination remains *** study introduces early endosperm-expressed HAIKU(IKU)downstream Candidate F-box 1(ICF1)and ICF2 as maternally expressed imprinted genes(MEGs)in Arabidopsis *** these genes are also demethylated by DEMETER(DME)in the central cell,their activation differs from the direct DME-mediated activation seen in classical MEGs such as the FIS ***,ICF maternal alleles carry pre-established hypomethylation in their promoters,priming them for activation by the WRKY10 transcription factor in the *** the contrary,paternal alleles are predominantly suppressed by CG ***,we find that ICF genes partially contribute to the small seed size observed in iku *** discovery reveals a two-step regulatory mechanism that highlights the important role of conventional transcription factors in the activation of imprinted genes,which was previously not fully ***,the mechanism provides a new dimension to understand the transcriptional regulation of imprinting in plant reproduction and development.

关键词： Imprinting Epigenetics DNAmethylation Seedsize Endosperm

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PLCG2 Mutation in a Patient Presenting with Type 2 Autoimmune Hepatitis

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Journal of Clinical and Translational Hepatology 2024年第7期12卷 685-687页

作者： Antoine Gardin Léa Gaigne Aude Magérus Frédéric Rieux-Laucat Emmanuel Jacquemin Pediatric Hepatology and Liver Transplantation Unit National Reference Centre for Inflammatory Diseases of the Bile Ducts and Autoimmune HepatitisFILFOIEERN RARE LIVERBicêtre HospitalAssistance Publique–Hôpitaux de ParisUniversity Paris-SaclayLe Kremlin-BicêtreFrance INSERM UMR 1193 HepatinovParis-Saclay UniversityOrsayFrance Laboratory of Immunogenetics of Pediatric Autoimmune Diseases INSERM UMR 1163Imagine InstituteParis CitéUniversityParisFrance

The combination of defective immune tolerance and external triggers is thought to underlie the pathophysiology of autoimmune hepatitis.1,2 Some polymorphisms associated with susceptibility to autoimmune hepatitis have been reported,and some cases have been described in patients with monogenic primary immune deficiencies or systemic diseases.

关键词： autoimmune Autoimmune immune

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Factors Associated with Mortality in Diabetic Patients with End-Stage Renal Failure Starting Emergency Hemodialysis

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Open Journal of Nephrology 2024年第1期14卷 17-24页

作者： Gaël Honal Mahoungou Daniel Tony Eyeni Sinomono Farel Elilié Mawa Ongoth Éric Ngandzali-ngabé Nestor Andzouana Raissa Laure Mayanda Aymande Okoumou-Moko Francky Ambounou Précieux Ngoma Berline Ndinga Héléna Botokoto Bothard Hardy Ibovi richard Loumingou Department of Nephrology University Hospital of Brazzaville Brazzaville Congo Faculty of Health Sciences University Marien Ngouabi Brazzaville Congo Department of Metabolic Diseases University Hospital of Brazzaville Brazzaville Congo

Background: Diabetic nephropathy is the leading cause of end-stage chronic kidney disease with poor prognosis in resource-limited settings. This study aimed to determine factors associated with mortality in patients starting dialysis treatment for end-stage chronic renal disease in an emergency context. Patients and Methods: This was a retrospective study from January 2020 to December 2022 at CHU-B. Data from 79 diabetic patients requiring emergency dialysis were compared with those of 79 non-diabetic patients with an end-stage renal disease requiring emergency dialysis. Data were collected from the Nephrology Department registry. We studied their initial clinical and biological profiles and factors related to mortality. Results: Out of 545 compiled records, 79 diabetic chronic kidney disease patients needing dialysis were included (group 1). A control group of 79 non-diabetic chronic kidney disease patients requiring emergency dialysis was also included (group 2). The average age of patients was 53.5 ± 17 years, and the duration of diabetes at dialysis initiation was 14.8 ± 4.3 years. Twenty-three percent were hypertensive. Fifty-two percent of patients experienced intra-dialytic hypotension. Death occurred in 22% of patients. Results show that age (adjusted OR 1.955;CI: 1.025 - 1.086;p-value: Conclusion: Emergency dialysis in diabetics is associated with unfavorable outcomes in terms of mortality. Despite follow-up, renal involvement remains poorly explored, emphasizing the need for physician awareness.

关键词： Diabetic Nephropathy Emergency Dialysis Republic of the Congo

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Parallelization of frequency domain quantum gates:manipulation and distribution of frequency-entangled photon pairs generated by a 21 GHz silicon microresonator

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Advanced Photonics 2024年第3期6卷 60-69页

作者： Antoine Henry Dario A.Fioretto Lorenzo M.Procopio Stéphane Monfray Frédéric Boeuf Laurent Vivien Eric Cassan Carlos Alonzo-Ramos Kamel Bencheikh Isabelle Zaquine Nadia Belabas Institut Polytechnique de Paris LTCITélécom ParisPalaiseauFrance Université Paris-Saclay CNRSCentre for Nanosciences and NanotechnologyUMR 9001PalaiseauFrance Weizmann Institute of Science RehovotIsrael STMicroelectronics SAS CrollesFrance

Harnessing the frequency dimension in integrated photonics offers key advantages in terms of scalability,noise resilience,parallelization,and compatibility with telecom multiplexing *** ring resonators have been used to generate frequency-entangled states through spontaneous four-wave ***,state-of-the-art integrated resonators are limited by trade-offs among size,spectral separation,and efficient photon pair *** have developed silicon ring resonators with a footprint below 0.05 mm^(2)providing more than 70 frequency channels separated by 21 *** exploit the narrow frequency separation to parallelize and independently control 34 single qubit-gates with a single set of three off-the-shelf electro-optic *** fully characterize 17 frequency-bin maximally entangled qubit pairs by performing quantum state *** demonstrate for the first time,we believe,a fully connected five-user quantum network in the frequency *** results are a step towards a generation of quantum circuits implemented with scalable silicon photonics technology,for applications in quantum computing and secure communications.

关键词： integrated photonics frequency domain quantum gates quantum networks

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Neonatal Intestinal Obstruction in Acute Renal Failure in Premature Infant: A Case Report

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Open Journal of Pediatrics 2024年第2期14卷 338-343页

作者： Ondima Lucienne Irène Patricia Okiemy Niendet Cardinale Princilia gandzali-ngabe Pierre Eric Caryne Mboutol-Mandavo Bosseba Missengui Rhodia Hélène Akobande Nuptia Erica Department of Paediatric Surgery CHU Brazzaville Brazzaville Congo Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo Department of Nephrology and Dialysis Brazzaville University Hospital Brazzaville Congo

Introduction: Intestinal obstruction is a common cause of abdominal surgery in the neonate. Diagnosis is straightforward using standard radiology, and surgical technique depends on the underlying anatomical lesion. Peritoneal dialysis (PD) is an effective, albeit invasive, therapy for neonatal renal failure. We report a case of neonatal obstruction with severe renal failure treated by PD to highlight our hospital practice and possible remedies in a context of limited resources. Case Presentation: This was a female neonate of moderate prematurity admitted on day 4 of life for management of a flat neonatal obstruction. Radiological diagnosis suggested small bowel atresia. Biological tests revealed severe renal failure with creatinine levels of 416 micromoles per liter and blood urea of 27.1 micromoles per liter. Management consisted of preoperative peritoneal dialysis for 48 hours followed by laparotomy. The intraoperative diagnosis was GROSFELD type IIIa digestive atresia. The postoperative course was favourable, transit was resumed on day 5 and the patient returned home on day 12. Progress at 3 months was satisfactory. Conclusion: Neonatal intestinal obstruction with renal failure in premature infants is associated with a poor prognosis, even more so if there is a delay in treatment. Peritoneal dialysis seems to be a suitable alternative for this management in our working conditions with limited resources.

关键词： Neonate Occlusion Peritoneal Dialysis Case Report

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Dynamic of Scalar Bosons in Aharonov-Bohm Magnetic Field

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Journal of Applied Mathematics and Physics 2024年第1期12卷 268-276页

作者： Frédéric D. Y. Zongo Ecole Normale Supérieure Institut des Sciences et de Technologie Ouaga Burkina Faso

We study the dynamic of scalar bosons in the presence of Aharonov-Bohm magnetic field. First, we give the differential equation that governs this dynamic. Secondly, we use variational techniques to show that the following Schrödinger-Newton equation: , where A is an Aharonov-Bohm magnetic potential, has a unique ground-state solution.

关键词： Scalar Boson Aharonov-Bohm Magnetic Field Schrödinger-Newton Equation Ground-State Solution

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