Results 81 to 90 of about 76,294 (297)

Bladder acellular matrix graft: in vivo functional properties of the regenerated rat bladder. [PDF]

open access: yes, 1999
The purpose of this study was to determine whether the rat urinary bladder augmented by an acellular matrix graft can restore the bladder's low-pressure reservoir function and preserve normal micturition.
Dahiya, R   +6 more
core  

PACS‐2 Mitigates NPSC Apoptosis and Intervertebral Disc Degeneration by Preserving MAM Integrity via the SP1/LRRK2/Mfn2 Axis

open access: yesAdvanced Science, EarlyView.
This study investigates the role of PACS‐2 in IDD, demonstrating that it suppresses the nuclear translocation of SP1, thereby downregulating its downstream target LRRK2. This reduces LRRK2‐mediated ubiquitination and degradation of Mfn2 through the JNK pathway, preserving MAM integrity and promoting NPSC survival.
Liang Kang   +19 more
wiley   +1 more source

Adeno‐associated virus serotype 2 capsid variants for improved liver‐directed gene therapy

open access: yesHepatology, EarlyView., 2022
Abstract Background and Aims Current liver‐directed gene therapies look for adeno‐associated virus (AAV) vectors with improved efficacy. With this background, capsid engineering is explored. Whereas shuffled capsid library screenings have resulted in potent liver targeting variants with one first vector in human clinical trials, modifying natural ...
Nadja Meumann   +25 more
wiley   +1 more source

Análise do comportamento biológico de heteroenxertos descelularizados e homoenxertos criopreservados: estudo em ovinos Decellularized heterografts versus cryopreserved homografts: experimental study in sheep model

open access: yesBrazilian Journal of Cardiovascular Surgery, 2009
OBJETIVO: Este estudo avalia o comportamento biológico dos heteroenxertos porcinos descelularizados (Grupo Desc) comparados com os homoenxertos criopreservados (Grupo Crio) implantados em carneiros jovens.
Sergio Augusto Veiga Lopes   +7 more
doaj   +1 more source

A Lung‐Immune Dual‐Humanized Mouse Using Cryopreserved Tissue Enables Infection and Immune Profiling of Human Common Cold Coronaviruses

open access: yesAdvanced Science, EarlyView.
Cryopreserved lung‐humanized mice overcome the dependency to fresh tissues and permit head‐to‐head profiling of all four human common cold coronaviruses versus SARS‐CoV‐2 infection; the model validates Paxlovid efficacy against HKU1 and, when coupled with human immune‐system engraftment, enables interrogation of lung‐resident human immunity and HKU1 ...
Chunyu Cheng   +9 more
wiley   +1 more source

TP53 R249S mutation in hepatic organoids captures the predisposing cancer risk

open access: yesHepatology, EarlyView., 2022
The systematic approach in elucidating the gain‐of‐function (GOF) roles of TP53 mutations in early liver carcinogenesis. Unique downstream targets of TP53 L3 mutations were identified from chormatin immunoprecipitation sequencing in HCC cell lines, followed by a series of validation assays to substantiate the exclusive transcriptional regulations ...
Yin Kau Lam   +10 more
wiley   +1 more source

Natural Killer Cells from Patients with Recombinase-Activating Gene and Non-Homologous End Joining Gene Defects Comprise a Higher Frequency of CD56bright NKG2A+++ Cells, and Yet Display Increased Degranulation and Higher Perforin Content

open access: yesFrontiers in Immunology, 2017
Mutations of the recombinase-activating genes 1 and 2 (RAG1 and RAG2) in humans are associated with a broad range of phenotypes. For patients with severe clinical presentation, hematopoietic stem cell transplantation (HSCT) represents the only curative ...
Kerry Dobbs   +59 more
doaj   +1 more source

A Microbiota‐ and IL‐15‐Dependent Innate‐Like B Cell Progenitor Expressing E4BP4

open access: yesAdvanced Science, EarlyView.
This work identifies CD3.NKp46.CD19.NK1.1. NK‐B cells enriched in PDK1‐deficient yet present in wild‐type bone marrow. IL‐15 (via CD122) and TLR9‐microbiota signaling maintain their E4BP4 expression. These cells demonstrate innate immunity, preferentially differentiate into B cells, and unveil a novel microbiota‐ and IL‐15‐dependent regulatory pathway ...
Junming He   +11 more
wiley   +1 more source

O uso do transplante osteocondral a fresco no tratamento das lesões osteocondrais do joelho Use of fresh osteochondral transplants for treating osteochondral knee lesions

open access: yesRevista Brasileira de Ortopedia, 2012
O tratamento das lesões condrais e osteocondrais do joelho em pacientes jovens ainda permanece um desafio para os ortopedistas. As técnicas de reparo atualmente disponíveis no Brasil, como o desbridamento, microfraturas e transplante osteocondral ...
Luís Eduardo Passarelli Tírico   +1 more
doaj  

Ex Vivo Spatiotemporal Characterization of Spermatogenesis in Mouse Testicular Organoids

open access: yesAdvanced Science, EarlyView.
To date, in vitro spermatogenesis remains a challenge in reproductive medicine. In this study, Sun et al. developed a promising in vitro strategy to generate testicular organoids that enable germ cells from newborn mice to enter meiosis, complete chromosome recombination and synapsis, and develop into haploid spermatids.
Jiachen Sun   +9 more
wiley   +1 more source

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