Human beta-endorphin-like immunoreactive substances (beta h-EI) in human cerebrospinal fluid (CSF) were determined radioimmunologically. The cross reactivity of the antibodies to human beta-endorphin (beta h-E) amounted to 40% for human beta-lipotropin (beta h-LPH) whilst it was less than 1% for leu- and metenkephalin, alpha- and gamma-endorphin, fraction I and II [5], substance P and alpha-MSH. Prior to radioimmunological determination, an adsorbtion of beta h-EI from CSF with silicic acid was carried out and followed by a desorbtion, using a mixture of aceton/hydrochloric acid. This method was chosen because of the ratio of beta h-LPH to beta h-E in the desorbate can be shifted in favour of beta h-E owing to the variation in recoveries r (r beta h-LPH = 33%, r beta h-E = 64%). On the one hand, this enables a more specific determination of beta h-E and, on the other hand, and separation of any peptidase than may be present [9]. An adsorbtion/desorbtion of 2 ml CSF surfaces to prove the presence of 20-150 pg/ml (65-48 fmol/ml) of beta h-EI. The CSF of 28 patients with various neurological diseases was examined and 24 of them had concentrations of 20-70 pg/ml beta h-EI. The remaining four which had concentrations less than 20 pg/ml, came from meningitis patients undergoing corticoid therapy. A purchasable RIA kid was tested for its determination of beta h-E and was found to be unsuitable.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/BF00313282 | DOI Listing |
Front Aging Neurosci
January 2025
Department of Geriatric Medicine, Quzhou People's Hospital, Quzhou, China.
Alzheimer's disease (AD) is a complex neurodegenerative disorder, with amyloid-beta (Aβ) aggregation playing a key role in its pathogenesis. Aβ-induced oxidative stress leads to neuronal damage, mitochondrial dysfunction, and apoptosis, making antioxidative strategies promising for AD treatment. This study investigates the effects of hydrogen-rich water (HRW) in a zebrafish AD model.
View Article and Find Full Text PDFMol Med
January 2025
Jaseng Spine and Joint Research Institute, Jaseng Medical Foundation, Gangnamdae-ro 540, Seoul, 135-896, Republic of Korea.
Background: Inflammation is a critical protective response in the body, essential for combating infections and healing injuries. However, chronic inflammation can be harmful and significantly contribute to the development and progression of chronic diseases, with macrophage-mediated responses being central to these processes. This study presents "SBR-Pel," a new therapeutic blend of Shinbaro tab (SBR), a traditional herbal formula, and pelubiprofen (Pel), a non-steroidal anti-inflammatory drug, and investigated their combined anti-inflammatory effects to create a treatment that both improves efficacy and reduces side effects.
View Article and Find Full Text PDFFront Microbiol
January 2025
School of Acupuncture-Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Objective: This study aimed to investigate the impact of electroacupuncture (EA) on blood glucose levels, gut microbiota, short-chain fatty acids (SCFAs), and glucagon-like peptide-1 (GLP-1) in a rat model of type 2 diabetes mellitus (T2DM).
Methods: Forty Sprague-Dawley (SD) rats were randomly assigned to five groups (n = 8/group) using a random number table: normal control, T2DM model, electroacupuncture (EA), EA + antibiotics (EA + A), and antibiotics (A). The normal rats received a standard diet and saline gavage, while the other groups were fed a high-fat diet and emulsion.
Iran J Pharm Res
September 2024
Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Background: Dry eye disease (DED) is a multifactorial condition characterized by ocular surface inflammation, tear film instability, and corneal epithelial damage. Current treatments often provide temporary relief without addressing the underlying inflammatory mechanisms.
Objectives: This study examined the therapeutic potential of crocin and nobiletin, two naturally derived compounds with well-known antioxidant and anti-inflammatory properties, in a mouse model of DED induced by lacrimal gland excision (LGE).
Curr Mol Pharmacol
January 2025
Department of Cardiology, Second Hospital of Shanxi Medical University, Taiyuan, Shanxi Province, 030001, China.
Background And Aims: Atherosclerosis is a chronic cardiovascular disease which is regarded as one of the most common causes of death in the elderly. Recent evidence has shown that atherosclerotic patients can benefit by targeting interleukin-1 beta (IL-1β). Aloperine (ALO) is an alkaloid which is mainly isolated from L.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!