Background: Diabetes mellitus is associated with cognitive deficits in humans and animals. These deficits are paralleled by neurophysiological and structural changes in brain. In diabetic animals, impairments of spatial learning, memory, and cognition occur in association with distinct changes in hippocampus, a key brain area for many forms of learning and memory and are particularly sensitive to changes in glucose homeostasis. However, the multifactorial pathogenesis of diabetic encephalopathy is not yet completely understood. Apoptosis plays a crucial role in diabetes-induce neuronal loss in hippocampus.
Methods: The effects of diabetes on hippocampus and cognitive/behavioral dysfunctions in experimental models of diabetes are reviewed, with a focus on the negative impact on increased neuronal apoptosis and related cellular and molecular mechanisms.
Results: Of all articles that were assessed, most of the experimental studies clearly showed that diabetes causes neuronal apoptosis in hippocampus through multiple mechanisms, including oxidative stress, inhibition of caspases, disturbance in expression of apoptosis regulator genes, as well as deficits in mitochondrial function. The balance between pro-apoptotic and anti-apoptotic signaling may determine the neuronal apoptotic outcome in vitro and in vivo models of experimental diabetes.
Conclusions: Dissecting out the mechanisms responsible for diabetes-related changes in the hippocampal cell apoptosis helps improve treatment of impaired cognitive and memory functions in diabetic individuals.
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http://dx.doi.org/10.4103/2008-7802.178531 | DOI Listing |
Mol Med Rep
March 2025
School of Basic Medicine, Anhui Medical University, Hefei, Anhui 230032, P.R. China.
The incidence of hyperuricemia has increased recently, posing a serious threat to public health. Hyperuricemia is associated with an increased risk of gout, chronic kidney disease (CKD), obesity, metabolic syndrome, type 2 diabetes mellitus, hypertension, hypertriglyceridaemia, metabolic dysfunction‑associated steatotic liver disease, acute kidney injury, coronary heart disease and cardiovascular disease (CVD). These diseases are commonly accompanied by varying degrees of kidney damage.
View Article and Find Full Text PDFJ Biochem Mol Toxicol
January 2025
Department of General Medicine, the Second Affiliated Hospital of Xi'an Jiaotong University, Xinjiang Hospital, Urumqi, China.
Among the diabetes-related complications, diabetic nephropathy is the major complication and it leads to end-stage renal failure. In the current investigation, we examined the protection of brucine, an alkaloid extracted from the seeds of Strychnos nux vomica plant widely used in traditional Chinese and Indian medicines against diabetic-induced nephropathy. Male Wistar rats were divided into four groups: control, diabetic rats, diabetic-induced + 40 mg/kg brucine-treated rats, and diabetic-induced + 25 mg/kg metformin-treated rats.
View Article and Find Full Text PDFFront Immunol
December 2024
Institute for Molecular Cardiovascular Research (IMCAR), Uniklinik RWTH Aachen, RWTH Aachen University, Aachen, Germany.
Recent demographic developments resulted in an aged society with a rising disease burden of systemic and non-communicable diseases (NCDs). In cardiovascular disease (CVD), a NCD with high morbidity and mortality, recent preventive strategies include the investigation of comorbidities to reduce its significant economic burden. Periodontal disease, an oral bacterial-induced inflammatory disease of tooth-supporting tissue, is regulated in its prevalence and severity by the individual host response to a dysbiotic oral microbiota.
View Article and Find Full Text PDFOphthalmol Sci
October 2024
Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey.
Objective: To investigate retinal vascular permeability mapping as a potential biomarker for diabetic retinopathy in subjects with diabetes with no signs of retinopathy and with mild nonproliferative retinopathy.
Design: This is a case-control study.
Subjects: Participants included 7 healthy controls, 22 subjects with diabetes mellitus and no clinical signs of retinopathy (DMnoDR), and 7 subjects with mild nonproliferative diabetic retinopathy (NPDR).
Cureus
December 2024
Department of Physiology, Arabian Gulf University, Manama, BHR.
[This corrects the article DOI: 10.7759/cureus.64886.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!