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1.
Infect Dis (Lond) ; 56(11): 1000-1002, 2024 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-39146199

RESUMEN

Mixta calida, previously known as Pantoea calida, was initially isolated from powdered infant milk in 2010. It falls within the Erwiniaceae family (class: Enterobacterales). While Mixta calida was traditionally regarded as non-pathogenic, we now present a case of Mixta calida bacteraemia and meningitis in a 5-week-old child, successfully treated with cefotaxime. This case, in contrast to prior reports with potential contamination issues, is the first to offer compelling evidence of Mixta calida's pathogenicity in humans.


Asunto(s)
Antibacterianos , Bacteriemia , Infecciones por Enterobacteriaceae , Humanos , Lactante , Antibacterianos/uso terapéutico , Bacteriemia/microbiología , Bacteriemia/tratamiento farmacológico , Cefotaxima/uso terapéutico , Infecciones por Enterobacteriaceae/microbiología , Infecciones por Enterobacteriaceae/tratamiento farmacológico , Infecciones por Enterobacteriaceae/diagnóstico , Meningitis Bacterianas/microbiología , Meningitis Bacterianas/tratamiento farmacológico , Meningitis Bacterianas/diagnóstico , Resultado del Tratamiento , Gammaproteobacteria/patogenicidad
3.
Acta Clin Belg ; 78(6): 521-523, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37589240

RESUMEN

We present a case of a 80-year-old patient with a catheter-related bloodstream infection caused by Chimaeribacter species. The Chimaeribacter genus represents a novel genus within the Yersiniaceae family. To the best of our knowledge, as of today, nothing is known about the pathogenicity of Chimaeribacter species, nor about the appropriate antimicrobial management. In the present case, we demonstrate, for the first time, a potential clinical relevance of the Chimaeribacter species. Antimicrobial susceptibility data are presented.

4.
Am J Gastroenterol ; 118(9): 1601-1608, 2023 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-36719174

RESUMEN

INTRODUCTION: Despite improvements in the management of chronic hepatitis B (CHB), risk of cirrhosis and hepatocellular carcinoma remains. While hepatitis B surface antigen loss is the optimal end point, safe discontinuation of nucleos(t)ide analog (NA) therapy is controversial because of the possibility of severe or fatal reactivation flares. METHODS: This is a multicenter cohort study of virally suppressed, end-of-therapy (EOT) hepatitis B e antigen (HBeAg)-negative CHB patients who stopped NA therapy (n = 1,557). Survival analysis techniques were used to analyze off-therapy rates of hepatic decompensation and differences by patient characteristics. We also examined a subgroup of noncirrhotic patients with consolidation therapy of ≥12 months before cessation (n = 1,289). Hepatic decompensation was considered related to therapy cessation if diagnosed off therapy or within 6 months of starting retreatment. RESULTS: Among the total cohort (11.8% diagnosed with cirrhosis, 84.2% start-of-therapy HBeAg-negative), 20 developed hepatic decompensation after NA cessation; 10 events were among the subgroup. The cumulative incidence of hepatic decompensation at 60 months off therapy among the total cohort and subgroup was 1.8% and 1.1%, respectively. The hepatic decompensation rate was higher among patients with cirrhosis (hazard ratio [HR] 5.08, P < 0.001) and start-of-therapy HBeAg-positive patients (HR 5.23, P < 0.001). This association between start-of-therapy HBeAg status and hepatic decompensation remained significant even among the subgroup (HR 10.5, P < 0.001). DISCUSSION: Patients with cirrhosis and start-of-therapy HBeAg-positive patients should be carefully assessed before stopping NAs to prevent hepatic decompensation. Frequent monitoring of viral and host kinetics after cessation is crucial to determine patient outcome.


Asunto(s)
Hepatitis B Crónica , Neoplasias Hepáticas , Humanos , Antígenos e de la Hepatitis B , Hepatitis B Crónica/tratamiento farmacológico , Hepatitis B Crónica/epidemiología , Hepatitis B Crónica/diagnóstico , Incidencia , Estudios de Cohortes , Antivirales/uso terapéutico , Recurrencia Local de Neoplasia , Antígenos de Superficie de la Hepatitis B , Resultado del Tratamiento , Cirrosis Hepática/epidemiología , Cirrosis Hepática/tratamiento farmacológico , Neoplasias Hepáticas/epidemiología , Neoplasias Hepáticas/tratamiento farmacológico , Virus de la Hepatitis B , ADN Viral
6.
Clin Gastroenterol Hepatol ; 21(6): 1513-1522.e4, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-35863683

RESUMEN

BACKGROUND AND AIMS: Whether entecavir (ETV) and tenofovir disoproxil fumarate (TDF) differentially affect relapse and outcomes following treatment discontinuation across different patient subpopulations remains unclear. We aimed to compare rates of off-therapy hepatitis B surface antigen (HBsAg) loss, virological and clinical relapse, and retreatment between chronic hepatitis B (CHB) patients who discontinued TDF or ETV therapy. METHODS: This study included 1402 virally suppressed CHB patients who stopped either ETV (n = 981) or TDF (n = 421) therapy between 2001 and 2020 from 13 participating centers across North America, Europe, and Asia. All patients were hepatitis B e antigen-negative at treatment discontinuation. Inverse probability of treatment weighting was used to balance the treatment groups. Outcomes were analyzed using survival methods. RESULTS: During a median off-treatment follow-up of 18 months, HBsAg loss occurred in 96 (6.8%) patients overall. Compared with ETV, TDF was associated with a higher rate of HBsAg loss (P = .03); however, the association was no longer significant after statistical adjustment (P = .61). Virological relapse occurred earlier among TDF-treated patients (P < .01); nonetheless, rates became comparable after the first year off therapy (P = .49). TDF was significantly associated with a higher clinical relapse rate than ETV throughout follow-up (P < .01). The development of a virological or clinical relapse did not affect the rate of HBsAg loss. Retreatment rates were not significantly different between the treatment groups. CONCLUSIONS: TDF and ETV have differential relapse patterns but are associated with similar rates of HBsAg loss and retreatment following discontinuation. Finite therapy can be considered for CHB patients on either TDF or ETV therapy.


Asunto(s)
Hepatitis B Crónica , Humanos , Tenofovir , Hepatitis B Crónica/tratamiento farmacológico , Antivirales , Antígenos de Superficie de la Hepatitis B , Resultado del Tratamiento , Recurrencia , Virus de la Hepatitis B , ADN Viral
7.
BMJ Open Gastroenterol ; 10(1)2023 12 07.
Artículo en Inglés | MEDLINE | ID: mdl-38637963

RESUMEN

BACKGROUND AND AIMS: Historical paired liver biopsy studies are likely to underestimate current progression of disease in patients with chronic hepatitis C virus (HCV) infection. We aimed to assess liver disease progression according to the non-invasive Fibrosis-4 (FIB-4) index in patients with chronic HCV and early disease. METHODS AND RESULTS: Patients diagnosed with chronic HCV and FIB-4 <3.25 from four international liver clinics were included in a retrospective cohort study. Follow-up ended at start of antiviral therapy resulting in sustained virological response, at time of liver transplantation or death. Primary outcome of advanced liver disease was defined as FIB-4 >3.25 during follow-up. Survival analyses were used to assess time to FIB-4 >3.25.In total, 4286 patients were followed for a median of 5.0 (IQR 1.7-9.4) years, during which 41 071 FIB-4 measurements were collected. At baseline, median age was 47 (IQR 39-55) years, 2529 (59.0%) were male, and 2787 (65.0%) patients had a FIB-4 <1.45. Advanced liver disease developed in 821 patients. Overall, 10-year cumulative incidence of advanced disease was 32.1% (95% CI 29.9% to 34.3%). Patients who developed advanced disease showed an exponential FIB-4 increase. Among patients with a presumed date of HCV infection, cumulative incidence of advanced disease increased 7.7-fold from 20 to 40 years as opposed to the first 20 years after HCV infection. CONCLUSIONS: The rate of advanced liver disease is high among chronic HCV-infected patients with early disease at time of diagnosis, among whom liver disease progression accelerated over time. These results emphasise the need to overcome any limitations with respect to diagnosing and treating all patients with chronic HCV across the globe.


Asunto(s)
Hepatitis C Crónica , Hepatitis C , Humanos , Masculino , Persona de Mediana Edad , Femenino , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/diagnóstico , Hepatitis C Crónica/patología , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/epidemiología , Cirrosis Hepática/patología , Estudios Retrospectivos , Progresión de la Enfermedad
8.
JHEP Rep ; 4(2): 100398, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-35059620

RESUMEN

Insights into the immunopathogenesis of chronic HBV infections are fundamental in the quest for novel treatment approaches aimed at a functional cure. While much is known about the ineffective HBV-specific T-cell responses that characterise persistent HBV replication, B cells have been left largely understudied. However, an important role for humoral immunity during the natural history of HBV infections, as well as after functional cure, has been inadvertently revealed by the occurrence of HBV flares following B cell-depleting treatments. Herein, we review our current understanding of the role of the humoral immune response in chronic HBV, both at the level of HBV-specific antibody production and at the phenotypic and broader functional level of B cells. The recent development of fluorescently labelled HBV proteins has given us unprecedented insights into the phenotype and function of HBsAg- and HBcAg-specific B cells. This should fuel novel research into the mechanisms behind dysfunctional HBsAg-specific and fluctuating, possibly pathogenic, HBcAg-specific B-cell responses in chronic HBV. Finally, novel immunomodulatory treatments that partly target B cells are currently in clinical development, but a detailed assessment of their impact on HBV-specific B-cell responses is lacking. We plead for a rehabilitation of B-cell studies related to both the natural history of HBV and treatment development programmes.

9.
Gastroenterology ; 162(3): 757-771.e4, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-34762906

RESUMEN

BACKGROUND & AIMS: Functional cure, defined based on hepatitis B surface antigen (HBsAg) loss, is rare during nucleos(t)ide analogue (NA) therapy and guidelines on finite NA therapy have not been well established. We aim to analyze off-therapy outcomes after NA cessation in a large, international, multicenter, multiethnic cohort of patients with chronic hepatitis B (CHB). METHODS: This cohort study included patients with virally suppressed CHB who were hepatitis B e antigen (HBeAg)-negative and stopped NA therapy. Primary outcome was HBsAg loss after NA cessation, and secondary outcomes included virologic, biochemical, and clinical relapse, alanine aminotransferase flare, retreatment, and liver-related events after NA cessation. RESULTS: Among 1552 patients with CHB, cumulative probability of HBsAg loss was 3.2% at 12 months and 13.0% at 48 months of follow-up. HBsAg loss was higher among Whites (vs Asians: subdistribution hazard ratio, 6.8; 95% confidence interval, 2.7-16.8; P < .001) and among patients with HBsAg levels <100 IU/mL at end of therapy (vs ≥100 IU/mL: subdistribution hazard ratio, 22.5; 95% confidence interval, 13.1-38.7; P < .001). At 48 months of follow-up, Whites with HBsAg levels <1000 IU/mL and Asians with HBsAg levels <100 IU/mL at end of therapy had a high predicted probability of HBsAg loss (>30%). Incidence rate of hepatic decompensation and hepatocellular carcinoma was 0.48 per 1000 person-years and 0.29 per 1000 person-years, respectively. Death occurred in 7/19 decompensated patients and 2/14 patients with hepatocellular carcinoma. CONCLUSIONS: The best candidates for NA withdrawal are virally suppressed, HBeAg- negative, noncirrhotic patients with CHB with low HBsAg levels, particularly Whites with <1000 IU/mL and Asians with <100 IU/mL. However, strict surveillance is recommended to prevent deterioration.


Asunto(s)
Antivirales/uso terapéutico , Pueblo Asiatico/estadística & datos numéricos , Hepatitis B Crónica/sangre , Hepatitis B Crónica/tratamiento farmacológico , Nucleósidos/uso terapéutico , Población Blanca/estadística & datos numéricos , Adulto , Factores de Edad , Estudios de Cohortes , ADN Viral/sangre , Femenino , Estudios de Seguimiento , Guanina/análogos & derivados , Guanina/uso terapéutico , Antígenos de Superficie de la Hepatitis B/sangre , Antígenos e de la Hepatitis B/sangre , Virus de la Hepatitis B , Hepatitis B Crónica/fisiopatología , Humanos , Masculino , Persona de Mediana Edad , Nucleósidos/análogos & derivados , Factores Raciales , Recurrencia , Retratamiento , Tenofovir/uso terapéutico
10.
United European Gastroenterol J ; 10(1): 115-123, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34846093

RESUMEN

Worldwide, over 250 million people are chronically infected with the hepatitis B virus (HBV). Infected patients have an up to 100-fold increased risk for liver-related complications, including cirrhosis, hepatic decompensation and hepatocellular carcinoma. Nonetheless, the majority of the infections remains asymptomatic, stressing the importance of HBV screening and linkage to care. Excellent clinical outcomes are seen during nucleos(t)ide analogue (NA) therapy, which often is continued indefinitively due to a lack of functional cure. Increasing evidence suggests that NA discontinuation following long-term treatment induced viral suppression in patients without a functional cure may be a favourable option. Reliable biomarkers are, however, urgently needed to select the patients that would benefit from NA withdrawal. In addition, renewed and novel approaches to improve screening and linkage to care are other fundamental factors in the optimisation of the clinical management of chronic hepatitis B.


Asunto(s)
Enfermedades Asintomáticas , Virus de la Hepatitis B , Hepatitis B Crónica/tratamiento farmacológico , Anciano , Antivirales/uso terapéutico , Carcinoma Hepatocelular/etiología , Carcinoma Hepatocelular/terapia , Quimioembolización Terapéutica , Várices Esofágicas y Gástricas , Encefalopatía Hepática , Antígenos de Superficie de la Hepatitis B , Antígenos e de la Hepatitis B/inmunología , Virus de la Hepatitis B/genética , Virus de la Hepatitis B/inmunología , Virus de la Hepatitis B/aislamiento & purificación , Hepatitis B Crónica/complicaciones , Hepatitis B Crónica/diagnóstico , Hepatitis B Crónica/virología , Humanos , Fallo Hepático/etiología , Neoplasias Hepáticas/etiología , Neoplasias Hepáticas/terapia , Masculino , Seroconversión , Tenofovir/uso terapéutico , Privación de Tratamiento
11.
Artículo en Inglés | MEDLINE | ID: mdl-34204195

RESUMEN

During the COVID-19 pandemic, healthcare workers (HCW) have been subjected to greater workloads. We conducted a cross-sectional online survey to assess the impact of the COVID-19 pandemic on Brazilian HCW. Data were collected between 11 August and 1 November 2020. Of the 295 respondents, 95 (32.2%) were medical doctors, 82 (27.8%) administrative staff, 53 (18.0%) nurses, 27 (9.2%) laboratory staff, and 38 (12.9%) were other staff. COVID-19-related restructuring at the health facilities was reported by 207 (70.2%) respondents, and 69 (23.4%) had their tasks changed. Preventive measures were well respected when seeing suspected patients. Overall, 167 (56.6%) HCW screened positive for anxiety and 137 (46.4%) for depression; 109 (36.9%) screened positive for both conditions. Of the 217 (73.6%) HCW who had been tested for COVID-19, at least one positive result was reported in 49 (22.6%). Following a positive COVID-19 test, 45/49 (91.8%) stopped working and stayed home. In conclusion, we found a high incidence of COVID-19 infection among Brazilian HCW with high rates of anxiety and depression despite a good self-reported adherence to COVID-19 preventive measures. As such, our study highlights the urgent need for interventions to mitigate the psychosocial risks HCW in Brazil encounter during the COVID-19 pandemic.


Asunto(s)
COVID-19 , Pandemias , Brasil/epidemiología , Estudios Transversales , Personal de Salud , Humanos , SARS-CoV-2
12.
Artículo en Inglés | MEDLINE | ID: mdl-33806286

RESUMEN

Adherence to preventive measures is essential to reduce the risk of COVID-19 transmission. Two online surveys were conducted in the Democratic Republic of the Congo (DRC) from 23 April to 8 June 2020, and from August 24th to September 8th, respectively. A total of 3268 (round 1) and 4160 (round 2) participants were included. In both surveys, there was a moderate level of adherence to regular handwashing (85% and 77%, respectively), wearing of facemasks (41.4% and 69%, respectively), and respecting physical distancing (58% and 43.4%, respectively). The second survey found that, working in private (OR = 2.31, CI: 1.66-3.22; p < 0.001) and public organizations (OR = 1.61, CI: 1.04-2.49; p = 0.032) and being a healthcare worker (OR = 2.19, CI: 1.57-3.05; p < 0.001) significantly increased the odds for better adherence. However, a unit increase in age (OR = 0.99, CI: 0.98-0.99; p < 0.026), having attained lower education levels (OR = 0.60, CI: 0.46-0.78; p < 0.001), living in a room (OR = 0.36, CI: 0.15-0.89; p = 0.027), living in a studio (OR = 0.26, CI: 0.11-0.61; p = 0.002) and apartment (OR = 0.29, CI: 0.10-0.82; p = 0.019) significantly decreased the odds for better adherence. We recommend a multi-sectorial approach to monitor and respond to the pandemic threat. While physical distancing may be difficult in Africa, it should be possible to increase the use of facemasks.


Asunto(s)
COVID-19 , República Democrática del Congo , Humanos , Pandemias , SARS-CoV-2 , Encuestas y Cuestionarios
13.
Artículo en Inglés | MEDLINE | ID: mdl-33925506

RESUMEN

COVID-19 affects persons living with HIV (PLWH) both directly (via morbidity/mortality) and indirectly (via disruption of HIV care). From July-November 2020, an online survey was conducted to investigate the psychosocial well-being of PLWH and changes in HIV care during the second semester of the COVID-19 outbreak. Data were collected on the socio-demographic characteristics of PLWH, their psychosocial well-being, impact of COVID-19 preventive measures on their daily routines and HIV follow-up. Of the 247 responses analyzed (mean age: 44.5 ± 13.2 years; 73.7% male), 67 (27.1%) and 69 (27.9%) respondents screened positive for anxiety (GAD-2 score ≥ 3) and depression (PHQ-2 score ≥ 3), respectively. HIV care had returned to pre-COVID-19 state for 48.6% PLWH, and 108 (43.7%) had no HIV follow-up during the past month. Over three quarters (76.1%) of respondents expressed willingness to receive the COVID-19 vaccine. Compared to previous findings in April 2020, substance use increased from 58.6% to 67.2% (p < 0.001). Our findings suggest that the well-being and medical follow-up of PLWH are still affected after almost a year into the COVID-19 outbreak. Remote HIV follow-up (telemedicine) with psychosocial support should be envisaged in the medium to long-term. Given that most PLWH accept COVID-19 vaccination, they may be prioritized for this intervention.


Asunto(s)
COVID-19 , Infecciones por VIH , Adulto , Vacunas contra la COVID-19 , Femenino , Estudios de Seguimiento , Infecciones por VIH/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Pandemias , SARS-CoV-2 , Encuestas y Cuestionarios
14.
Vaccines (Basel) ; 9(2)2021 Feb 14.
Artículo en Inglés | MEDLINE | ID: mdl-33672938

RESUMEN

We investigated the level of willingness for COVID-19 vaccination in the Democratic Republic of Congo (DRC). Data were collected between 24 August 2020 and 8 September 2020 through an online survey. A total of 4131 responses were included; mean age of respondents was 35 years (standard deviation: 11.5); 68.4% were females; 71% had elementary or secondary school education. One fourth (24.1%) were convinced that COVID-19 did not exist. Overall, 2310 (55.9%) indicated they were willing to be vaccinated. In a multivariable regression model, belonging to the middle and high-income category (OR = 1.85, CI: 1.46-2.35 and OR = 2.91, CI: 2.15-3.93, respectively), being tested for COVID-19 (OR = 4.71, CI: 3.62-6.12; p < 0.001), COVID-19 community vaccine acceptance (OR = 14.45, CI: 2.91-71.65; p = 0.001) and acknowledging the existence of COVID-19 (OR = 6.04, CI: 4.42-8.23; p < 0.001) were associated with an increased willingness to be vaccinated. Being a healthcare worker was associated with a decreased willingness for vaccination (OR = 0.46, CI: 0.36-0.58; p < 0.001). In conclusion, the current willingness for COVID-19 vaccination among citizens of the DRC is too low to dramatically decrease community transmission. Of great concern is the low intention of immunization among healthcare workers. A large sensitization campaign will be needed to increase COVID-19 vaccine acceptance.

15.
Epilepsy Behav ; 116: 107800, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33571838

RESUMEN

OBJECTIVE: To evaluate the impact of the coronavirus disease 2019 (COVID-19) measures on the lives and psychosocial well-being of persons with epilepsy (PWE) during the third trimester of the COVID-19 pandemic. METHODS: A structured questionnaire investigating different aspects of the lives and psychosocial well-being of PWE during the COVID-19 pandemic was developed. Persons with epilepsy were invited via social media to anonymously respond to a secure web-based online questionnaire (www.icpcovid.com). Responses were collected between July 26th and December 3rd, 2020. Hospital anxiety and depression scales (HADS) were used to screen respondents for depression (HADS-D) and anxiety (HADS-A). RESULTS: Responses of 407 PWE were included in the analysis; 304 (74.7%) respondents were female and 245 (60.2%) living in Europe, 157 (38.6%) in South America, and 5 (1.2%) in Canada. Seventy-six (18.7%) reported a decrease of income during the COVID-19 lockdown, and 122 (30.0%) experienced difficulties in obtaining anti-seizure medication (ASM), mostly (72/122, 59.0%) due to unavailability. Seizure frequency increased in 122 (30.0%); 295 (72.5%) screened positive for anxiety, and 159 (39.1%) for depression. Hundred eighty-eight (46.2%) reported reluctance to seek medical care; 27.3% believed that epilepsy was associated with an increased risk of COVID-19 disease. Forty-six (74.2%) of 62 PWE who were followed up by telephone or video consult were satisfied with this consult. Fifty-five respondents, most (89.1%) of whom were from Europe, had also participated in a previous survey during the early months of the pandemic. In this subgroup, although there was no difference in prevalence of a positive screening for depression or anxiety, mean scores on HADS-A and HADS-D increased from 6.65 ±â€¯3.99 to 7.27 ±â€¯4.01 (p = 0.418), and from 5.84 ±â€¯4.43 to 6.60 ±â€¯4.45 (p = 0.371), respectively. CONCLUSIONS: The COVID-19 pandemic continues to impact the psychosocial and somatic well-being of PWE. To minimize this impact, ensuring uninterrupted access to ASM is essential. Teleconsultations are valid alternatives for continued follow-up, but should include attention to psychosocial well-being. Persons with epilepsy should be more actively informed that epilepsy is not a risk factor for developing (more severe) COVID-19 disease.


Asunto(s)
COVID-19/epidemiología , COVID-19/psicología , Epilepsia/epidemiología , Epilepsia/psicología , Internacionalidad , Encuestas y Cuestionarios , Adulto , Ansiedad/epidemiología , Ansiedad/psicología , Ansiedad/terapia , COVID-19/prevención & control , Control de Enfermedades Transmisibles/métodos , Control de Enfermedades Transmisibles/tendencias , Atención a la Salud/métodos , Atención a la Salud/tendencias , Epilepsia/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pandemias/prevención & control , Consulta Remota/métodos , Consulta Remota/tendencias , Factores de Riesgo , Convulsiones/epidemiología , Convulsiones/psicología , Convulsiones/terapia
16.
Cell Immunol ; 362: 104283, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33548734

RESUMEN

The natural course of chronic hepatitis B virus (HBV) infections follows distinct clinical disease phases, characterized by fluctuating levels of serum HBV DNA and ALT. The immune cells and their features that govern these clinical disease transitions remain unknown. In the current study, we performed RNA sequencing on purified B cells from blood (n = 42) and liver (n = 10) of healthy controls and chronic HBV patients. We found distinct gene expression profiles between healthy controls and chronic HBV patients, as evidenced by 190 differentially expressed genes (DEG), but also between the clinical phenotypes of a chronic HBV infection (17-110 DEG between each phase). Numerous immune pathways, including the B cell receptor pathway were upregulated in liver B cells when compared to peripheral B cells. Further investigation of the detected DEG suggested an activation of B cells during HBeAg seroconversion and an active regulation of B cell signalling in the liver.


Asunto(s)
Linfocitos B/inmunología , Antígenos de la Hepatitis B/inmunología , Hepatitis B Crónica/inmunología , Adulto , Linfocitos B/fisiología , ADN Viral , Progresión de la Enfermedad , Femenino , Expresión Génica/genética , Regulación de la Expresión Génica/genética , Virus de la Hepatitis B/genética , Virus de la Hepatitis B/inmunología , Virus de la Hepatitis B/patogenicidad , Hepatitis B Crónica/fisiopatología , Humanos , Hígado/inmunología , Hígado/fisiopatología , Hígado/virología , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Análisis de Secuencia de ARN/métodos , Transcriptoma/genética
17.
Pathogens ; 10(2)2021 Jan 23.
Artículo en Inglés | MEDLINE | ID: mdl-33498763

RESUMEN

Nakalanga syndrome is a clinical manifestation of onchocerciasis-associated epilepsy characterized by stunting, delayed or absent secondary sexual development and skeletal deformities, and is often accompanied by epileptic seizures. The pathophysiology of Nakalanga syndrome is unknown. Here, we describe the post-mortem findings of a 17-year-old female who died with Nakalanga syndrome in northern Uganda. Macroscopic and histopathological examination of all major organs (liver, lungs, kidney and heart), including the brain and the pituitary gland, was performed. The suspected cause of death was malaria, and all major organs and pituitary gland appeared normal, except the lungs, which were edematous consistent with the malaria. Neuropathological changes include signs of neuro-inflammation (gliosis and activated microglia), which co-localized with tau-reactive neurofibrillary tangles and threads. The pathology was most abundant in the frontal cortex, thalamic and hypothalamic regions, and mesencephalon. The choroid plexus showed psammoma bodies. These findings indicate accelerated aging, probably due to repeated seizures. The neuropathological findings were similar to other persons who died with onchocerciasis-associated epilepsy. Examination of the pituitary gland did not reveal new information concerning the underlying pathophysiological mechanism of Nakalanga syndrome. Therefore, more post-mortem studies should be performed.

18.
Acta Clin Belg ; 76(5): 392-396, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32182200

RESUMEN

Exhaustion of antigen-specific T-cells in order to escape immune destruction is frequently seen in chronic viral infection and different types of cancer. Blockade of overexpressed negative co-stimulatory pathways, a process known as immune checkpoint modulation, is a promising novel therapy that could improve the treatment of liver diseases with features of T cell exhaustion. We present a case of a 54-year-old hepatitis C virus (HCV) positive patient with an acute flare of hepatitis during nivolumab treatment for a stage IV lung carcinoma, an anti-programmed death-1 (PD-1) immunotherapy. Retrospective testing of HCV RNA documented infection more than 6 months ago. Nivolumab treatment was associated with an alanine aminotransferase (ALT) flare reaching a peak value of 663 U/L, along with bilirubin levels of 0.74 mg/dL and no signs of coagulopathy. The assumption of a nivolumab-associated autoimmune hepatitis led to the interruption of the immune checkpoint inhibitor treatment. However, a subsequent 1-log decrease of HCV RNA load was noticed, which raised the possibility of an immune reconstitution against the HCV-infected hepatocytes with cell lysis. Liver biopsy specimen demonstrated no evidence for autoimmune liver disease or fibrosis. Clinical evolution was favorable and serum transaminases returned to normal levels and HCV RNA load increased to baseline values following nivolumab cessation. The current case suggests an anti-HCV activity of anti-PD-1 treatment in the setting of concomitant HCV viremia and lung carcinoma.


Asunto(s)
Hepatitis , Neoplasias Pulmonares , Humanos , Inmunoterapia , Persona de Mediana Edad , Nivolumab/efectos adversos , Estudios Retrospectivos
19.
Epilepsy Behav ; 112: 107350, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32920373

RESUMEN

OBJECTIVE: The objective of this study was to assess access to healthcare and to estimate the prevalence of depression and anxiety among persons with epilepsy (PWE) during the ongoing coronavirus disease 2019 (COVID-19) pandemic. METHODS: We conducted a multicountry online survey among PWE. Persons with epilepsy were invited to participate through various social media channels. The Hospital Anxiety and Depression Scale (HADS) and 9-item Patient Health Questionnaire (PHQ-9) scale were used to score anxiety and depression. Logistic regression modeling was used to investigate factors associated with anxiety and depression. RESULTS: Three hundred ninety-nine PWE were included (mean age: 38.22 ±â€¯12.09 years), the majority were female (80.2%) and living in high-income countries (83.2%). Two hundred three PWE reported symptoms of a cold since January 2020. Nine (25%) of the 36 PWE tested for COVID were positive. A total of 72 PWE (19.6%) reported problems to obtain antiseizure medication (ASM), which in 25% of cases was directly COVID-related. Of the 399 PWE, 201 (50.4%) screened positive for anxiety according to the HADS; 159 (39.8%) and 187 (46.9%) PWE screened positive for depression based on the HADS and PHQ-9 scale, respectively. Female gender and financial problems were associated with both depression and anxiety. A planned follow-up consultation with the treating physician was associated with a lower risk of depression, whereas difficulties to access ASM treatment increased the odds of depression. In 65/137 (47.4%) PWE with a planned follow-up visit with the treating physician, this consultation was canceled. CONCLUSIONS: Innovative approaches are needed to ensure continuity in access to ASM treatment. Healthcare workers should ensure continued follow-up, either through inperson or telehealth appointments, to timely identify symptoms of anxiety and depression and act accordingly.


Asunto(s)
Anticonvulsivantes/uso terapéutico , Ansiedad/epidemiología , Infecciones por Coronavirus/epidemiología , Depresión/epidemiología , Epilepsia/epidemiología , Accesibilidad a los Servicios de Salud , Neumonía Viral/epidemiología , Adulto , Anticonvulsivantes/provisión & distribución , Betacoronavirus , COVID-19 , Atención a la Salud , Epilepsia/tratamiento farmacológico , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Pandemias , Cuestionario de Salud del Paciente , Prevalencia , Factores de Riesgo , SARS-CoV-2 , Encuestas y Cuestionarios
20.
J Acquir Immune Defic Syndr ; 85(3): 257-262, 2020 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-32826562

RESUMEN

BACKGROUND: Empirical data on the consequences of the novel coronavirus disease (COVID-19) pandemic on HIV care are lacking. We surveyed people living with HIV (PLWH) in different countries to investigate whether their medical follow-up and psychosocial well-being had been compromised due to COVID-19 and associated restrictions. METHODS: In April 2020, a cross-sectional survey among PLWH was conducted using a web-based multilingual questionnaire. The research tool assessed HIV follow-up, psychosocial well-being, COVID-19 (flu-like) symptoms and prevention measures. Consenting respondents provided answers anonymously. RESULTS: Three hundred seventeen PLWH were included (mean age 43.4 ± 11.7; 71.6% men); 60.3% of participants resided in Belgium and Brazil. One hundred forty (44.2%) reported experiencing a cold with at least one flu-like symptom since January 2020. Of the 18 who reported COVID-19 test results, 4 (22.2%) were positive. Seventy-four (23.3%) respondents screened positive for major depressive disorders, whereas 72 (22.7%) had generalized anxiety disorders. Fifty-six (17.7%) respondents reported difficulties in obtaining antiretroviral medications because of COVID-19-related measures. Adaptations of HIV care during the COVID-19 outbreak included greater quantities of antiretroviral refill in 67 (21.1%), phone consultations in 25 (7.9%), and new refill sites in 12 (3.9%). Factors associated with a reduced risk of experiencing flu-like symptoms included flu vaccination during the past 12 months (P = 0.005) and adaptations of HIV care during the COVID-19 pandemic (P = 0.010). CONCLUSION: COVID-19 and associated restrictive measures seem detrimental to the well-being and follow-up of PLWH. We recommend that health systems devise innovative approaches for antiretroviral provision and psychosocial support to PLWH during such outbreaks.


Asunto(s)
Betacoronavirus , Infecciones por Coronavirus/complicaciones , Infecciones por Coronavirus/psicología , Infecciones por VIH/complicaciones , Infecciones por VIH/psicología , Neumonía Viral/complicaciones , Neumonía Viral/psicología , Adulto , Anciano , Fármacos Anti-VIH/uso terapéutico , Ansiedad , Bélgica , Brasil , COVID-19 , Estudios Transversales , Depresión , Europa Oriental , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Gripe Humana/complicaciones , Gripe Humana/prevención & control , Masculino , Persona de Mediana Edad , Pandemias , Psicología , SARS-CoV-2 , Encuestas y Cuestionarios , Adulto Joven
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