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Topic Review
Natural Products against Oxidative Stress in Multiple Sclerosis
Multiple sclerosis (MS) is an autoimmune-mediated degenerative disease of the central nervous system (CNS) characterized by immune cell infiltration, demyelination and axonal injury. Oxidative stress-induced inflammatory response, especially the destructive effect of immune cell-derived free radicals on neurons and oligodendrocytes, is crucial in the onset and progression of MS. Therefore, targeting oxidative stress-related processes may be a promising preventive and therapeutic strategy for MS. Animal models, especially rodent models, can be used to explore the in vivo molecular mechanisms of MS considering their similarity to the pathological processes and clinical signs of MS in humans and the significant oxidative damage observed within their CNS. Consequently, these models have been used widely in pre-clinical studies of oxidative stress in MS. To date, many natural products have been shown to exert antioxidant effects to attenuate the CNS damage in animal models of MS.
  • 795
  • 23 Aug 2022
Topic Review
Endometrial Hyperplasia
Endometrial hyperplasia without cytological atypia is commonly treated with progestins, but other treatments may be available with equivalent efficacy and reduced side effects. Here, we evaluate the effect of genistein aglycone on angiogenesis and apoptosis-related markers women with endometrial hyperplasia. Premenopausals (n=38) with nonatypical endometrial hyperplasia were administered either genistein aglycone (54 mg/day, n=19) or norethisterone acetate (10 mg/day, n=19) on days 16–25 of the menstrual cycle and evaluated for 6 months. Biopsies were taken during hysteroscopy at baseline and 6 months, and symptoms including excessive uterine bleeding were assessed at baseline and 3 and 6 months following recruitment. The expression of angiogenesis (Vegf), epithelial (Egf and Tgfb), and apoptosis-related (Bax, Bcl-2, and Casp-9) molecules, were assessed in uterine biopsies at baseline and after 6 months of therapy. Follicle-stimulating hormone, luteinizing hormone, estradiol, SHBG, and progesterone levels were also measured. After 6 months, 42% of genistein aglycone-administered patients had a significant improvement of symptoms compared to 47% of norethisterone acetate subjects. No significant differences were noted in hormone levels for any treatment. Gene expression revealed a significant reduction in Vegf, Egf, and Tgfb (P<0.05 versus baseline), and an increase in proapoptotic molecules (Bax and Casp-9), with a concomitant decrease in Bcl-2 values (P<0.05) in both groups. These results suggest that genistein aglycone might be useful for the management of endometrial hyperplasia without atypia in women who cannot or do not wish to be treated with progestin.
  • 794
  • 01 Nov 2020
Topic Review
Treatment of Endometriosis
Endometriosis is a gynecological condition characterized by the growth of endometrium-like tissues inside and outside the pelvic cavity. The evolution of the disease can lead to infertility in addition to high treatment costs. The available medications are only effective in treating endometriosis-related pain.   
  • 793
  • 12 Jul 2022
Topic Review
Fibrodysplasia ossificans progressiva (FOP)
Fibrodysplasia ossificans progressiva (FOP) is an extremely rare heritable disorder of connective tissues characterized by progressive heterotopic ossification in various skeletal sites.
  • 794
  • 28 Sep 2020
Topic Review
Natural Compound Berberine
Accumulation of misfolded proteins is a common hallmark of several neurodegenerative disorders (NDs) which results from a failure or an impairment of the protein quality control (PQC) system. The PQC system is composed by chaperones and the degradative systems (proteasome and autophagy). Misfolded proteins are potentially neurotoxic, thus strategies aimed at preventing their aggregation or enhancing their clearance are emerging as interesting therapeutic targets for NDs. We tested the natural alkaloid berberine (BBR) and some derivatives (NAXs) for their capability to enhance misfolded proteins clearance in cell models of NDs. We found that both BBR and its semisynthetic derivatives promoted proteasomal degradation of mutant androgen receptor (ARpolyQ) causative of spinal and bulbar muscular atrophy, preventing its aggregation. Overlapping effects were observed on other misfolded proteins causative of amyotrophic lateral sclerosis, frontotemporal-lobar degeneration or Huntington disease, but with selective and specific action against each different mutant protein. BBR and NAX compounds induce the clearance of misfolded proteins responsible for NDs, representing potential therapeutic tools to counteract these fatal disorders.  
  • 790
  • 30 Oct 2020
Topic Review
Honey in Reversing Metabolic Syndrome
Honey is a natural by-product from the flower nectar and aerodigestive tract of honey bees, which contains various complex biochemical components. Fructose (36%) and glucose (31%) are the main carbohydrate constituents of honey.
  • 789
  • 18 Mar 2021
Topic Review
TG-Rich Lipoproteins
Very low-density lipoprotein (VLDL) and chylomicrons, which are known as TG-rich lipoproteins (TRLs), are spherical particles with core lipids (TG and cholesterol esters), phospholipids, free cholesterol, and surface apolipoproteins. The origins of TGs are generally exogenous or endogenous. Exogenous TG is mostly obtained from daily diet and transported within chylomicrons, while endogenous TG circulates in VLDL and is mostly formed in the hepatobiliary system.
  • 788
  • 07 Sep 2021
Topic Review
[18F]FDG PET/CT Diagnosis
According to the international societies’ recommendations, the 2-deoxy-2-[18F]fluoro-D-glucose positron emission tomography/computed tomography ([18F]FDG PET/CT) technique should not be used as the method of choice in brain tumour diagnosis. Therefore, the brain region can be omitted during standard [18F]FDG PET/CT scanning. We performed comprehensive literature research and analysed results from 14,222 brain and torso [18F]FDG PET/CT studies collected in 2010–2020 to discuss whether the [18F]FDG PET/CT method may be useful in brain tumours detection.
  • 786
  • 29 Mar 2022
Topic Review
Gender Differences and NPS
Sex and gender deeply affect the subjective effects and the pharmaco-toxicological responses to drugs. Men are more likely than women to use almost all types of illicit drugs and to present to emergency departments for serious or fatal intoxications. However, women are just as likely as men to develop substance use disorders, and may be more susceptible to craving and relapse.
  • 786
  • 26 Oct 2020
Topic Review
Oligodendroglial Cells
Oligodendrocytes (OLs) are ramified glial cells within the central nervous system (CNS) whose terminal processes generate myelin and enwrap neuronal axons. 
  • 784
  • 04 Aug 2021
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