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Tag: Fertility

Older woman's brain
Analysis of over a thousand postmenopausal women suggests that women with longer reproductive spans, earlier first period (menarche), and later menopause experience slower brain aging [1]. Linking sex hormones to brain health The female reproductive system fails to work properly much earlier than other systems in the human body. The aging of the reproductive system...
Sprague-Dawley Rat
The authors of a recent study reported that OSKM/Yamanaka factor gene therapy in rats results in higher fertility at an older age compared to controls and allows older rats to have regular cycles [1]. Rejuvenating Yamanaka factors Yamanaka Factors - Opportunities for RejuvenationDrs. Takahashi and Yamanaka showed that they could use Oct4, Sox2, Klf4, and c-Myc...
Cynomolgus monkey
An investigation into transplanting human embryonic stem cells (hESC)-derived MSC-like cells (M cells) into the ovaries of cynomolgus monkeys suggests an extension of female reproductive span accompanied by a reduction in senescence-associated processes, such as inflammation, fibrosis, oxidative damage, and apoptosis [1]. Increasing healthspan by delaying menopause Aging of the female reproductive system precedes aging...
Menopause
The researchers of a Nature Aging paper used multi-omics approaches to investigate cellular, molecular, and genetic drivers of human ovarian aging [1]. An early decline A decline in ovarian function occurs before a similar decline in other organs. Already in their mid-to-late thirties, women can experience symptoms such as fertility problems or increased frequency of...
Elderly woman with dementia
A recent paper in the European Journal of Epidemiology reported that recurrent miscarriage and stillbirths are associated with the occurrence of dementia, but there was insufficient evidence to establish such a connection between infertility and dementia [1]. Sex-specific differences in dementia risk Dementia affects women more frequently than men. The authors of this paper discuss...
Environmental Polystyrene
A recent paper has investigated the impact of polystyrene nanoplastics on the molecular processes of male reproductive tissues in mice [1]. Health risks of micro- and nanoplastics Microplastic and nanoplastic contamination is a worldwide public health concern for a good reason. Numerous research papers have associated microplastics with multiple health risks in the respiratory, immune,...