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Reed EG, Keller-Norrell PR. Minding the Gap: Exploring Neuroinflammatory and Microglial Sex Differences in Alzheimer's Disease. Int J Mol Sci 2023; 24:17377. [PMID: 38139206 PMCID: PMC10743742 DOI: 10.3390/ijms242417377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/04/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Research into Alzheimer's Disease (AD) describes a link between AD and the resident immune cells of the brain, the microglia. Further, this suspected link is thought to have underlying sex effects, although the mechanisms of these effects are only just beginning to be understood. Many of these insights are the result of policies put in place by funding agencies such as the National Institutes of Health (NIH) to consider sex as a biological variable (SABV) and the move towards precision medicine due to continued lackluster therapeutic options. The purpose of this review is to provide an updated assessment of the current research that summarizes sex differences and the research pertaining to microglia and their varied responses in AD.
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Affiliation(s)
- Erin G. Reed
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH 44242, USA
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Navarro JA, Decara J, Medina-Vera D, Tovar R, Lopez-Gambero AJ, Suarez J, Pavón FJ, Serrano A, de Ceglia M, Sanjuan C, Baltasar YA, Baixeras E, Rodríguez de Fonseca F. Endocrine and Metabolic Impact of Oral Ingestion of a Carob-Pod-Derived Natural-Syrup-Containing D-Pinitol: Potential Use as a Novel Sweetener in Diabetes. Pharmaceutics 2022; 14:pharmaceutics14081594. [PMID: 36015220 PMCID: PMC9416495 DOI: 10.3390/pharmaceutics14081594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 02/05/2023] Open
Abstract
The widespread use of added sugars or non-nutritive sweeteners in processed foods is a challenge for addressing the therapeutics of obesity and diabetes. Both types of sweeteners generate health problems, and both are being blamed for multiple complications associated with these prevalent diseases. As an example, fructose is proven to contribute to obesity and liver steatosis, while non-nutritive sweeteners generate gut dysbiosis that complicates the metabolic control exerted by the liver. The present work explores an alternative approach for sweetening through the use of a simple carob-pod-derived syrup. This sweetener consists of a balanced mixture of fructose (47%) and glucose (45%), as sweetening sugars, and a functional natural ingredient (D-Pinitol) at a concentration (3%) capable of producing active metabolic effects. The administration of this syrup to healthy volunteers (50 g of total carbohydrates) resulted in less persistent glucose excursions, a lower insulin response to the hyperglycemia produced by its ingestion, and an enhanced glucagon/insulin ratio, compared to that observed after the ingestion of 50 g of glucose. Daily administration of the syrup to Wistar rats for 10 days lowered fat depots in the liver, reduced liver glycogen, promoted fat oxidation, and was devoid of toxic effects. In addition, this repeated administration of the syrup improved glucose handling after a glucose (2 g/kg) load. Overall, this alternative functional sweetener retains the natural palatability of a glucose/fructose syrup while displaying beneficial metabolic effects that might serve to protect against the progression towards complicated obesity, especially the development of liver steatosis.
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Affiliation(s)
- Juan A. Navarro
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
- Facultad de Medicina, Campus de Teatinos s/n, Universidad de Málaga, 29010 Málaga, Spain
| | - Juan Decara
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
| | - Dina Medina-Vera
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
- Facultad de Medicina, Campus de Teatinos s/n, Universidad de Málaga, 29010 Málaga, Spain
- Unidad de Gestión del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
- Facultad de Ciencias, Campus de Teatinos s/n, Universidad de Málaga, 29010 Málaga, Spain
| | - Ruben Tovar
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
- Facultad de Medicina, Campus de Teatinos s/n, Universidad de Málaga, 29010 Málaga, Spain
| | - Antonio J. Lopez-Gambero
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
- Facultad de Ciencias, Campus de Teatinos s/n, Universidad de Málaga, 29010 Málaga, Spain
| | - Juan Suarez
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
- Departamento de Anatomía Humana, Medicina Legal e Historia de la Ciencia, Universidad de Málaga, 29010 Málaga, Spain
| | - Francisco Javier Pavón
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
- Unidad de Gestión del Corazón, Hospital Universitario Virgen de la Victoria, 29010 Málaga, Spain
| | - Antonia Serrano
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
| | - Marialuisa de Ceglia
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
| | - Carlos Sanjuan
- Euronutra S.L. Calle Johannes Kepler, 3, 29590 Málaga, Spain; (C.S.); (Y.A.B.)
| | | | - Elena Baixeras
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
- Correspondence: (E.B.); (F.R.d.F.); Tel.: +34-655373093 (E.B.); +34-669426548 (F.R.d.F.)
| | - Fernando Rodríguez de Fonseca
- Laboratorio de Medicina Regenerativa, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (A.J.L.-G.); (J.S.); (F.J.P.); (A.S.); (M.d.C.)
- Correspondence: (E.B.); (F.R.d.F.); Tel.: +34-655373093 (E.B.); +34-669426548 (F.R.d.F.)
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