PMID- 31069605 OWN - NLM STAT- MEDLINE DCOM- 20200421 LR - 20200421 IS - 1568-5608 (Electronic) IS - 0925-4692 (Linking) VI - 27 IP - 6 DP - 2019 Dec TI - Zinc and iron complexes of oleanolic acid, (OA) attenuate allergic airway inflammation in rats. PG - 1179-1192 LID - 10.1007/s10787-019-00597-2 [doi] AB - Oleanolic acid (OA) is a hydroxyl pentacyclic triterpene acid (HTAs) used in various ailments. Inflammatory diseases may be profoundly influenced by iron (Fe) and zinc (Zn) status. We studied the anti-asthmatic effects of two metal complexes (Fe and Zn) of OA in the ovalbumin (OVA)-induced rat model. Delayed type hypersensitivity (DTH) was measured. Total and differential leucocyte count was done in blood as well as bronchoalveolar lavage fluid (BALF). The mRNA expression levels of pro-inflammatory cytokines were measured in lung tissue by reverse transcription polymerase chain reaction. The levels of cyclooxygenase-2 (COX-2), immunoglobulin E (IgE) and 5-lipoxygenase (5-LOX) were estimated by enzyme linked immunosorbent assay. Splenocyte proliferation was performed through BrdU uptake method and nitric oxide levels were measured by colorimetric assay kit. The acute toxicity study was also done for the complexes. The asthmatic group developed allergic airway inflammation shown by increased DTH and inflammatory markers in blood and BALF. OA + Fe and OA + Zn displayed significant decrease in DTH, NO, expression of IL-4, 5, 13, 17, toll-like receptor-2, nuclear factor-kappa B and tumor necrosis factor-alpha; serum IgE, COX-2, and 5-LOX. The metal complexes also attenuated OVA-stimulated splenocyte proliferation. While no hepatotoxic or nephrotoxic potential was shown by OA + Fe and OA + Zn. Our findings indicate that both OA + Fe and OA + Zn possess significant anti-asthmatic effect which may be ascribed to its immunomodulatory and anti-inflammatory features. FAU - Jehangir, Adnan AU - Jehangir A AD - Department of Pharmacology, University of Health Sciences, Lahore, 54600, Pakistan. AD - Riphah International University, Islamabad, Pakistan. FAU - Shahzad, Muhammad AU - Shahzad M AUID- ORCID: 0000-0002-4812-8957 AD - Department of Pharmacology, University of Health Sciences, Lahore, 54600, Pakistan. shahzad912@hotmail.com. FAU - Shahid, Khadija AU - Shahid K AD - Riphah International University, Islamabad, Pakistan. FAU - Waheed, Akbar AU - Waheed A AD - Riphah International University, Islamabad, Pakistan. FAU - Ayub, Farhana AU - Ayub F AD - Riphah International University, Islamabad, Pakistan. LA - eng PT - Journal Article DEP - 20190508 PL - Switzerland TA - Inflammopharmacology JT - Inflammopharmacology JID - 9112626 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Cytokines) RN - 0 (Immunologic Factors) RN - 0 (RNA, Messenger) RN - 0 (Tlr2 protein, rat) RN - 0 (Toll-Like Receptor 2) RN - 411VRN1TV4 (Nitric Acid) RN - 6SMK8R7TGJ (Oleanolic Acid) RN - E1UOL152H7 (Iron) RN - J41CSQ7QDS (Zinc) SB - IM MH - Animals MH - Anti-Inflammatory Agents/pharmacology MH - Asthma/*drug therapy/immunology MH - Cytokines/genetics MH - Female MH - Immunologic Factors/pharmacology MH - Iron/therapeutic use MH - Lymphocyte Activation/drug effects MH - Nitric Acid/analysis MH - Oleanolic Acid/pharmacology/*therapeutic use MH - RNA, Messenger/analysis MH - Rats MH - Rats, Sprague-Dawley MH - Toll-Like Receptor 2/physiology MH - Zinc/therapeutic use OTO - NOTNLM OT - 5-Lipoxygenase (5-LOX) OT - Allergic asthma (AA) OT - Bronchoalveolar lavage fluid (BALF) OT - Cyclooxygenase-2 (COX-2) OT - Immunoglobulin E (IgE) OT - Iron (Fe) OT - Oleanolic acid (OA) OT - Zinc (Zn) EDAT- 2019/05/10 06:00 MHDA- 2020/04/22 06:00 CRDT- 2019/05/10 06:00 PHST- 2019/01/01 00:00 [received] PHST- 2019/04/10 00:00 [accepted] PHST- 2019/05/10 06:00 [pubmed] PHST- 2020/04/22 06:00 [medline] PHST- 2019/05/10 06:00 [entrez] AID - 10.1007/s10787-019-00597-2 [pii] AID - 10.1007/s10787-019-00597-2 [doi] PST - ppublish SO - Inflammopharmacology. 2019 Dec;27(6):1179-1192. doi: 10.1007/s10787-019-00597-2. Epub 2019 May 8.