Publications by authors named "H J Garchon"

Inflammatory bowel disease (IBD) is characterized by very severe intestinal inflammation associated with extra-intestinal manifestations. One of the most critical ones is bone destruction, which remains a major cause of morbidity and a risk factor for osteopenia and osteoporosis in IBD patients. In various mouse models of IBD, we and other have demonstrated concomitant bone loss due to a significant increase in osteoclast activity.

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Azoospermia (the complete absence of spermatozoa in the semen) is a common cause of male infertility. The etiology of azoospermia is poorly understood. Whole-genome analysis of azoospermic men has identified a number of candidate genes, such as the X-linked testis-expressed 11 (TEX11) gene.

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Article Synopsis
  • Diabetes significantly increases the risk of cardiovascular diseases, particularly among individuals with type 2 diabetes (T2D), where circulating monocytes play a crucial role in inflammation related to both diabetes and atherosclerosis.* -
  • A study involving 672 T2D patients found a positive correlation between blood monocyte counts and coronary artery calcium scores, which are indicators of cardiovascular risk, revealing distinct monocyte subtypes associated with varying cardiovascular risk levels.* -
  • The research indicates that analyzing monocyte frequency and profiles can serve as valuable predictors for cardiovascular events in T2D patients, highlighting potential mitochondrial dysfunction in these individuals' immune responses.*
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Introduction: In spondyloarthritis (SpA), an increased type 3 immune response, including T helper cells (Th) 17 excess, is observed in both human and SpA animal models, such as the HLA-B27/human β2-microglobulin transgenic rat (B27-rat).

Methods: To investigate this unexplained Th17-biased differentiation, we focused on understanding the immunobiology of B27-rat naive CD4 T cells (Tn).

Results: We observed that neutrally stimulated B27-rat Tn developed heightened Th17 profile even before disease onset, suggesting an intrinsic proinflammatory predisposition.

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Article Synopsis
  • - The study investigates the differences between inflammatory osteoclasts and normal (steady-state) osteoclasts, identifying specific traits and key receptors that regulate these cells during chronic inflammation.
  • - Researchers found that the yeast probiotic CNCM I-745 can reduce bone loss in mice with inflammation by targeting the generation of inflammatory osteoclasts.
  • - The findings suggest that certain receptors linked to yeast recognition (Tlr2, Dectin-1, Mincle) play a significant role in the differentiation of inflammatory osteoclasts, offering potential new treatments for conditions involving bone loss.
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