Browsing by Author "Refaiy A."

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    IL-10 and TGF-?: Roles in chondroprotective effects of Glucosamine in experimental Osteoarthritis?
    (Elsevier B.V., 2017) Waly N.E.; Refaiy A.; Aborehab N.M.; Department of Physiology; Faculty of Medicine; Helwan University; Cairo; 11795; Egypt; Department of Pathology Faculty of Medicine; Assiut University; Assiut; 71515; Egypt; Department of Biochemistry; Faculty of Pharmacy; MSA University; Giza; 11787; Egypt
    Objective Osteoarthritis (OA) is a complex disease of the whole joint. Glucosamine (GlcN) treatment may have a chondroprotective effect on OA. We investigated the mechanism of action of glucosamine treatment through interleukin-10 (Il-10) and transforming growth factor ?-1 (TGF ?-1). Methods Thirty male albino rats were used. A single intraarticular (i.a.) injection of 2�mg of Monosodium Iodoacetate (MIA) was injected into the knee joint of anesthetized rats. GlcN (50 or 100�mg/kg/day, p.o. for 2 month) was administered orally. Serum levels of Il-10 and TGF-?1 were determined by ELISA. Histopathological changes in treated and control joints were examined using hematoxylin-eosin (H & E) staining. Results The mean serum level of IL-10 significantly decreased in the OA group compared to control group (P value�<�0.0001). On the other hand, mean serum level of IL-10 significantly increased in GlcN treated groups when compared to the OA group (P value�<�0.0001). Serum level of TGF ?-1 was significantly elevated in OA group compared to control group (P value�<�0.0001). On the other hand, the mean serum level of TGF ?-1 was significantly decreased in the GlcN treated groups when compared to the OA group (P value�<�0.0001). Histopathological evaluation of GlcN treated groups showed different grades of healing, according to Osteoarthritis Research Society International (OARSI) grading system. Conclusion Our results showed that IL-10 and TGF-?1 possibly mediate GlcN chondroprotective effects in OA. Both serum biomarkers can be useful in the follow-up of articular cartilage damage in clinical settings. � 2017 Elsevier B.V.
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    A putative Chondroprotective role for IL-1β and MPO in herbal treatment of experimental osteoarthritis
    (BioMed Central Ltd., 2017) Aborehab N.M.; El Bishbishy M.H.; Refaiy A.; Waly N.E.; MSA University; Department of Biochemistry; Faculty of Pharmacy; Giza; 11787; Egypt; MSA University; Department of Pharmacognosy; Faculty of Pharmacy; Giza; 11787; Egypt; Assiut University; Department of Pathology Faculty of Medicine; Assiut; 71515; Egypt; Department of Physiology; Faculty of Medicine; Helwan University; Cairo; 11795; Egypt
    Background: Herbal treatment may have a chondroprotective and therapeutic effect on Osteoarthritis (OA). We investigated the mechanism of action of ginger and curcumin rhizomes cultivated in Egypt in treatment of OA in rat model. Methods: Thirty-five albino rats were intra-articularly injected with Monosodium Iodoacetate in the knee joint. Ginger and curcumin was orally administered at doses of 200 and 400mg/kg (F200 and F400). Serum levels of cartilage oligomeric matrix protein (COMP), hyaluronic acid (HA), malondialdehyde (MDA), myeloperoxidase (MPO), Interleukin-1 beta (IL-1?) and superoxide dismutase activity (SOD) were measured using ELISA. The composition of the herbal formula hydro-ethanolic extract was characterized using UPLC-ESI-MS. Histopathological changes in injected joints was examined using routine histopathology. Statistical analysis was performed using one-way ANOVA. Results: Serum levels of COMP, HA, MPO, MDA, and IL-1? were significantly decreased in F 200, F 400 and V groups when compared to OA group (P value <0.0001). On the other hand SOD levels were significantly elevated in treated groups compared to OA groups (P value <0.0001). Conclusions: The ginger/curcumin at 1:1 had chondroprotective effect via anti-inflammatory and antioxidant effect in rat OA model. Further pharmacological and clinical studies are needed to evaluate this effect. � 2017 The Author(s).