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  1. Article: Choléra et climat : que savons-nous ?

    Azman, Andrew S / Perez-Saez, Javier

    Revue medicale suisse

    2023  Volume 19, Issue 825, Page(s) 845–848

    Abstract: Cholera is an acute diarrheal disease caused by the bacteria Vibrio cholerae. Each year, 100'000 people die from cholera. The links between cholera, weather and climate are visible in the seasonality of cholera globally, but evidence to date illustrates ... ...

    Title translation Cholera and Climate: What do we know?
    Abstract Cholera is an acute diarrheal disease caused by the bacteria Vibrio cholerae. Each year, 100'000 people die from cholera. The links between cholera, weather and climate are visible in the seasonality of cholera globally, but evidence to date illustrates that the relationships between them are highly heterogeneous across settings, with differences in both the direction and strength of the associations. Before we can devise evidence-based scenarios on how climate change may influence cholera burden in the future, more detailed case studies, using more robust climate and epidemiological data from across the globe, are needed. In the meantime, provision of sustainable water and sanitation is of the highest priority to offset potential impacts of climate change on cholera.
    MeSH term(s) Humans ; Cholera/epidemiology ; Cholera/microbiology ; Vibrio cholerae ; Climate Change ; Water
    Chemical Substances Water (059QF0KO0R)
    Language French
    Publishing date 2023-02-21
    Publishing country Switzerland
    Document type English Abstract ; Journal Article
    ZDB-ID 2177010-4
    ISSN 1660-9379
    ISSN 1660-9379
    DOI 10.53738/REVMED.2023.19.825.845
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: BACE2 beyond β-processing of APP, its neuroprotective role in cerebrovascular endothelium.

    Sáez-Valero, Javier / Pérez-González, Rocío

    Journal of neurochemistry

    2023  Volume 166, Issue 6, Page(s) 887–890

    Abstract: Several proteases are involved in the proteolytic processing of the amyloid precursor protein (APP) generating the amyloidogenic Aβ peptide, which can act as the triggering pathological effector of Alzheimer's disease (AD). Among these proteases, the β- ... ...

    Abstract Several proteases are involved in the proteolytic processing of the amyloid precursor protein (APP) generating the amyloidogenic Aβ peptide, which can act as the triggering pathological effector of Alzheimer's disease (AD). Among these proteases, the β-site amyloid precursor protein cleaving enzyme 2 (BACE2) is of particular interest because it was first proposed as an alternative β-secretase to its homolog BACE1; however, accumulating evidence suggests that BACE2 acts as a non-amyloidogenic α-secretase and exerts neuroprotective effects. In this issue of J Neurochem, Katusic et al. present an interesting article reporting that BACE2 plays a role in preservation of cerebral vascular endothelial nitric oxide synthase (eNOS) function, thus exerting protective functions. Their data support that the process is mediated by the large soluble non-amyloidogenic APP fragment sAPPα through the γ-aminobutyric acid type B receptor 1, which enhances the expression of a major transcription factor for eNOS gene expression in endothelial cells, the Krüppel-like factor 2. These protective functions of BACE2 contrast with the pathogenic role of BACE1 as a key player in the AD amyloidogenic pathway. Indeed, many efforts have been invested in BACE1 inhibitors as potential disease modifiers for AD. Unfortunately, the results in clinical trials have been disappointing. In this scenario, a better understanding of the functions of BACE2, as well as the selectivity of BACE1 inhibitors with respect to other β-secretases (mainly BACE2), is crucial for the development of new therapeutic agents. Furthermore, specific cellular targeting should also be considered to improve such therapies due to the diverse balance of secretases targeting APP and the complex cross-talk between them and the generated APP fragments.
    MeSH term(s) Humans ; Amyloid Precursor Protein Secretases ; Amyloid beta-Protein Precursor ; Endothelial Cells ; Aspartic Acid Endopeptidases ; Alzheimer Disease ; Endothelium
    Chemical Substances Amyloid Precursor Protein Secretases (EC 3.4.-) ; Amyloid beta-Protein Precursor ; Aspartic Acid Endopeptidases (EC 3.4.23.-) ; BACE2 protein, human (EC 3.4.23.45)
    Language English
    Publishing date 2023-08-16
    Publishing country England
    Document type Editorial ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 80158-6
    ISSN 1471-4159 ; 0022-3042 ; 1474-1644
    ISSN (online) 1471-4159
    ISSN 0022-3042 ; 1474-1644
    DOI 10.1111/jnc.15940
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: THSD7A-positive membranous nephropathy after kidney transplantation: A case report.

    Solà-Porta, Eulàlia / Buxeda, Anna / Lop, Joan / Naranjo-Hans, Dolores / Gimeno, Javier / Lloveras-Rubio, Belén / Pérez-Sáez, María José / Redondo-Pachón, Dolores / Crespo, Marta

    Nefrologia

    2023  Volume 43 Suppl 2, Page(s) 85–90

    Abstract: Membranous nephropathy (MN) is a common cause of nephrotic syndrome after kidney transplantation (KT); however, scarce is known regarding post-KT thrombospondin type-1 domain-containing 7A (THSD7A)-positive MN. Herein, we report on a 72-year-old woman ... ...

    Abstract Membranous nephropathy (MN) is a common cause of nephrotic syndrome after kidney transplantation (KT); however, scarce is known regarding post-KT thrombospondin type-1 domain-containing 7A (THSD7A)-positive MN. Herein, we report on a 72-year-old woman with end-stage kidney disease due to chronic interstitial nephritis (1996). In February 2020, she received a second deceased-donor KT, achieving optimal kidney function but presenting early post-KT proteinuria, reaching up to 1800mg/24h six months after transplantation, controlled with renin-angiotensin-aldosterone system (RAAS) blockade. In July 2021, a kidney allograft biopsy revealed features consistent with MN. Immunohistochemical stains showed diffuse and granular THSD7A and C4d deposition in glomerular capillary walls and negative PLA2R and IgG4 staining. No anti-THSD7A antibodies were detected in the serum. The pre-implantation biopsy showed no MN-associated lesions and negative THSD7A staining. Secondary triggers such as malignancy were discarded. The present report illustrates a THSD7A-positive MN in a KT recipient. Despite lacking native kidney biopsy and early presentation, a recurrent MN seemed unprovable due to documented native kidney disease and a long time span between native kidney disease and MN diagnosis. We, therefore, presumed primary de novo disease. Two years after KT, kidney function remains stable, and the patient has reached complete remission of proteinuria.
    MeSH term(s) Female ; Humans ; Aged ; Glomerulonephritis, Membranous/diagnosis ; Kidney Transplantation/adverse effects ; Thrombospondins ; Kidney Glomerulus ; Proteinuria
    Chemical Substances Thrombospondins
    Language English
    Publishing date 2023-01-19
    Publishing country Spain
    Document type Case Reports ; Research Support, Non-U.S. Gov't
    ZDB-ID 2837917-2
    ISSN 2013-2514 ; 2013-2514
    ISSN (online) 2013-2514
    ISSN 2013-2514
    DOI 10.1016/j.nefroe.2022.09.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Evolution of kidney allograft loss causes over 40 years (1979-2019).

    Redondo-Pachón, Dolores / Calatayud, Emma / Buxeda, Anna / Pérez-Sáez, María José / Arias-Cabrales, Carlos / Gimeno, Javier / Burballa, Carla / Mir, Marisa / Llinàs-Mallol, Laura / Outon, Sara / Pascual, Julio / Crespo, Marta

    Nefrologia

    2023  Volume 43, Issue 3, Page(s) 316–327

    Abstract: Introduction: The improvement of kidney allograft recipient and graft survival showed a decrease over the last 40 years. Long-term graft loss rate remained stable during a 25-year time span. Knowing the changing causes and the risk factors associated ... ...

    Abstract Introduction: The improvement of kidney allograft recipient and graft survival showed a decrease over the last 40 years. Long-term graft loss rate remained stable during a 25-year time span. Knowing the changing causes and the risk factors associated with graft loss requires special attention. The present study aimed to assess the causes of graft loss and kidney allograft recipient death. Also, we aimed to compare two different periods (1979-1999 and 2000-2019) to identify changes in the characteristics of the failed allografts and recipient and donors profile.
    Methods and patients: We performed a single-center cohort study. We included all the kidney transplant recipients at the Hospital del Mar (Barcelona) between May 1979 and December 2019. Graft loss was defined as recipient death with functioning graft and as loss of graft function (return to dialysis or retransplantation). We assessed the causes of graft loss using clinical and histological information. We also analyzed the results of the two different transplant periods (1979-1999 and 2000-2019).
    Results: Between 1979 and 2019, 1522 transplants were performed. The median follow-up time was 56 (IQR 8-123) months. During follow-up, 722 (47.5%) grafts were lost: 483 (66.9%) due to graft failure and 239 (33.1%) due to death with functioning graft. The main causes of death were cardiovascular (25.1%), neoplasms (25.1%), and infectious diseases (21.8%). These causes were stable between the two periods of time. Only the unknown cause of death has decreased in the last period. The main cause of graft failure (loss of graft function) was the allograft chronic dysfunction (75%). When histologic information was available, antibody-mediated rejection (ABMR) and interstitial fibrosis/tubular atrophy (IF/TA) were the most frequent specific causes (15.9% and 12.6%). Of the graft failures, 213 (29.5%) were early (<1 year of transplantation). Vascular thrombosis was the main cause of early graft failure in the second period (2000-2019) (46.7%) and T-cell-mediated rejection (TCMR) was the main cause (31.3%) in the first period (1979-1999). The causes of late graft loss were similar between the two periods.
    Conclusions: The causes of kidney allograft recipient death are still due to cardiovascular and malignant diseases. Vascular thrombosis has emerged as a frequent cause of early graft loss in the most recent years. The evaluation of the causes of graft loss is necessary to improve kidney transplantation outcomes.
    MeSH term(s) Humans ; Cohort Studies ; Graft Rejection/epidemiology ; Graft Rejection/etiology ; Kidney/pathology ; Allografts ; Thrombosis
    Language English
    Publishing date 2023-07-26
    Publishing country Spain
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2837917-2
    ISSN 2013-2514 ; 2013-2514
    ISSN (online) 2013-2514
    ISSN 2013-2514
    DOI 10.1016/j.nefroe.2023.07.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Book ; Online: Thermal emissivity spectra and structural phase transitions of the eutectic Mg-51%Zn alloy

    Echániz, Telmo / Pérez-Sáez, Raúl Benjamín / Risueño, Elena / González-Fernández, Luis / Faik, Absessamad / Rodríguez-Aseguinolaza, Javier / Blanco-Rodríguez, Pablo / Doppiu, Steffania / Tello, Manuel José

    A candidate for thermal energy storage

    2024  

    Abstract: The thermal emissivity spectrum in the mid infrared range (3 to 21 $\mu$m) as well as its dependence on temperature between 225 and 320 $^{\circ}$C has been obtained for the Mg-51%Zn (weight %) eutectic alloy, a candidate for thermal storage. The ... ...

    Abstract The thermal emissivity spectrum in the mid infrared range (3 to 21 $\mu$m) as well as its dependence on temperature between 225 and 320 $^{\circ}$C has been obtained for the Mg-51%Zn (weight %) eutectic alloy, a candidate for thermal storage. The spectral curves show the typical behaviour of metals and alloys, with emissivity values between 0.05 and 0.2. It was also found that the emissivity spectrum shows variations in each heating cycle during the first few cycles. These changes are associated with the presence of metastable phases in the solid solid phase transition, present in the alloy below the melting point. The absence of signs of oxidation in air is very favourable for the use of this alloy in thermal energy storage systems. Moreover, the total normal emissivity curves obtained from dynamic spectral measurements have allowed analysing the behaviour phase transition sequence present in this alloy. These experimental results indicate that accurate emissivity measurements can be sensitive enough to account for the structural phase transitions in metals and alloys.
    Keywords Condensed Matter - Materials Science ; Physics - Applied Physics
    Subject code 669
    Publishing date 2024-01-23
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Kidney transplant outcomes in elderly recipients with controlled donation after circulatory death or donation after brain death donors: a registry cohort study.

    Pérez-Sáez, María José / Juega, Javier / Zapatero, Ana / Comas, Jordi / Tort, Jaume / Lauzurica, Ricardo / Pascual, Julio

    Transplant international : official journal of the European Society for Organ Transplantation

    2021  Volume 34, Issue 12, Page(s) 2507–2514

    Abstract: The number of kidney transplant (KT) procedures with controlled donation after circulatory death (cDCD) donors has exponentially increased in Spain in recent years, with a parallel increase in donor and recipient acceptance criteria. The outcomes of cDCD- ...

    Abstract The number of kidney transplant (KT) procedures with controlled donation after circulatory death (cDCD) donors has exponentially increased in Spain in recent years, with a parallel increase in donor and recipient acceptance criteria. The outcomes of cDCD-KT have been reported to be comparable to those of KT with donation after brain death (DBD) donors. However, studies in elderly recipients have yielded contradictory results. We performed a registry analysis of 852 KT recipients aged ≥65 years (575 in the DBD-KT group, 277 in the cDCD-KT group) in Catalonia, Spain. Clinical outcomes and survival were compared between DBD-KT and cDCD-KT recipients. The donor and recipient ages were similar between the two groups (71.5 ± 8.7 years for donors, 70.8 ± 4.1 years for recipients). Delayed graft function (DGF) was more frequent among cDCD-KT recipients, without a difference in the rate of primary nonfunction. The 3-year patient and death-censored graft survival rates were similar between DBD-KT and cDCD-KT recipients (78.8% vs. 76.4% and 90.3% vs. 86.6%, respectively). In multivariable analysis, previous cardiovascular disease and DGF were independent risk factors for patient death. The type of donation (cDCD vs. DBD) was not an independent risk factor for patient survival or graft loss. cDCD-KT and DBD-KT provide comparable patient and graft survival in elderly recipients.
    MeSH term(s) Aged ; Brain Death ; Child, Preschool ; Cohort Studies ; Death ; Graft Survival ; Humans ; Kidney Transplantation ; Registries ; Retrospective Studies ; Tissue Donors ; Tissue and Organ Procurement
    Language English
    Publishing date 2021-11-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 639435-8
    ISSN 1432-2277 ; 0934-0874
    ISSN (online) 1432-2277
    ISSN 0934-0874
    DOI 10.1111/tri.14141
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  7. Article ; Online: Corrigendum to "Microvascular inflammation in the absence of human leukocyte antigen-donor-specific antibody and C4d: An orphan category in Banff classification with cytotoxic T and natural killer cell infiltration" [American Journal of Transplantation 23 (2023) 464-474].

    Buxeda, Anna / Llinàs-Mallol, Laura / Gimeno, Javier / Redondo-Pachón, Dolores / Arias-Cabrales, Carlos / Burballa, Carla / Puche, Adrián / López-Botet, Miguel / Yélamos, José / Vilches, Carlos / Naesens, Maarten / Pérez-Sáez, María José / Pascual, Julio / Crespo, Marta

    American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons

    2023  Volume 24, Issue 4, Page(s) 701

    Language English
    Publishing date 2023-12-11
    Publishing country United States
    Document type Published Erratum
    ZDB-ID 2060594-8
    ISSN 1600-6143 ; 1600-6135
    ISSN (online) 1600-6143
    ISSN 1600-6135
    DOI 10.1016/j.ajt.2023.11.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Space and time predictions of schistosomiasis snail host population dynamics across hydrologic regimes in Burkina Faso.

    Perez-Saez, Javier / Mande, Theophile / Rinaldo, Andrea

    Geospatial health

    2019  Volume 14, Issue 2

    Abstract: The ecology of the aquatic snails that serve as obligatory intermediate hosts of human schistosomiasis is driven by climatic and hydrological factors which result in specific spatial patterns of occurrence and abundance. These patterns in turn affect, ... ...

    Abstract The ecology of the aquatic snails that serve as obligatory intermediate hosts of human schistosomiasis is driven by climatic and hydrological factors which result in specific spatial patterns of occurrence and abundance. These patterns in turn affect, jointly with other determinants, the geography of the disease and the timing of transmission windows, with direct implications for the success of control and elimination programmes in the endemic countries. We address the spatial distribution of the intermediate hosts and their seasonal population dynamics within a predictive ecohydrological framework developed at the national scale for Burkina Faso, West Africa. The approach blends river network-wide information on hydrological ephemerality which conditions snail habitat suitability together with ensembles of discrete time ecological models forced by remotely sensed estimates of temperature and precipitation. The models were validated against up to four years of monthly snail abundance data. Simulations of model ensembles accounting for the uncertainty in remotely sensed products adequately reproduce observed snail demographic fluctuations observed in the field across habitat types, and produce national scale predictions by accounting for spatial patterns of hydrological conditions in the country. Geospatial estimates of seasonal snail abundance underpin large-scale, spatially explicit predictions of schistosomiasis incidence. This work can therefore contribute to the development of disease control and elimination programmes.
    MeSH term(s) Animals ; Burkina Faso/epidemiology ; Computer Simulation ; Host-Parasite Interactions ; Humans ; Models, Theoretical ; Population Dynamics ; Schistosomiasis/veterinary ; Snails/parasitology ; Spatio-Temporal Analysis
    Language English
    Publishing date 2019-11-06
    Publishing country Italy
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2276179-2
    ISSN 1970-7096 ; 1827-1987
    ISSN (online) 1970-7096
    ISSN 1827-1987
    DOI 10.4081/gh.2019.796
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Microvascular inflammation in the absence of human leukocyte antigen-donor-specific antibody and C4d: An orphan category in Banff classification with cytotoxic T and natural killer cell infiltration.

    Buxeda, Anna / Llinàs-Mallol, Laura / Gimeno, Javier / Redondo-Pachón, Dolores / Arias-Cabrales, Carlos / Burballa, Carla / Puche, Adrián / López-Botet, Miguel / Yélamos, José / Vilches, Carlos / Naesens, Maarten / Pérez-Sáez, María José / Pascual, Julio / Crespo, Marta

    American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons

    2023  Volume 23, Issue 4, Page(s) 464–474

    Abstract: Isolated microvascular inflammation (iMVI) without HLA donor-specific antibodies or C4d deposition in peritubular capillaries remains an enigmatic phenotype that cannot be categorized as antibody-mediated rejection (ABMR) in recent Banff classifications. ...

    Abstract Isolated microvascular inflammation (iMVI) without HLA donor-specific antibodies or C4d deposition in peritubular capillaries remains an enigmatic phenotype that cannot be categorized as antibody-mediated rejection (ABMR) in recent Banff classifications. We included 221 kidney transplant recipients with biopsies with ABMR (n = 73), iMVI (n = 32), and normal (n = 116) diagnoses. We compared peripheral blood leukocyte distribution by flow cytometry and inflammatory infiltrates in kidney transplant biopsies among groups. Flow cytometry showed fewer lymphocytes and total, CD4
    MeSH term(s) Humans ; Kidney Transplantation/adverse effects ; Kidney/pathology ; Antibodies ; Inflammation/pathology ; Killer Cells, Natural ; HLA Antigens ; Graft Rejection/pathology
    Chemical Substances Antibodies ; HLA Antigens
    Language English
    Publishing date 2023-01-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2060594-8
    ISSN 1600-6143 ; 1600-6135
    ISSN (online) 1600-6143
    ISSN 1600-6135
    DOI 10.1016/j.ajt.2022.12.018
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Associations between meteorology and COVID-19 in early studies: Inconsistencies, uncertainties, and recommendations.

    Kerr, Gaige Hunter / Badr, Hamada S / Gardner, Lauren M / Perez-Saez, Javier / Zaitchik, Benjamin F

    One health (Amsterdam, Netherlands)

    2021  Volume 12, Page(s) 100225

    Abstract: Meteorological variables, such as the ambient temperature and humidity, play a well-established role in the seasonal transmission of respiratory viruses and influenza in temperate climates. Since the onset of the novel coronavirus disease 2019 (COVID-19) ...

    Abstract Meteorological variables, such as the ambient temperature and humidity, play a well-established role in the seasonal transmission of respiratory viruses and influenza in temperate climates. Since the onset of the novel coronavirus disease 2019 (COVID-19) pandemic, a growing body of literature has attempted to characterize the sensitivity of COVID-19 to meteorological factors and thus understand how changes in the weather and seasonality may impede COVID-19 transmission. Here we select a subset of this literature, summarize the diversity in these studies' scopes and methodologies, and show the lack of consensus in their conclusions on the roles of temperature, humidity, and other meteorological factors on COVID-19 transmission dynamics. We discuss how several aspects of studies' methodologies may challenge direct comparisons across studies and inflate the importance of meteorological factors on COVID-19 transmission. We further comment on outstanding challenges for this area of research and how future studies might overcome them by carefully considering robust modeling approaches, adjusting for mediating and covariate effects, and choosing appropriate scales of analysis.
    Language English
    Publishing date 2021-02-09
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2834831-X
    ISSN 2352-7714
    ISSN 2352-7714
    DOI 10.1016/j.onehlt.2021.100225
    Database MEDical Literature Analysis and Retrieval System OnLINE

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