Secretory Phospholipases A2 as Multivalent Mediators of Inflammatory and Allergic Disorders

2003 ◽  
Vol 131 (3) ◽  
pp. 153-163 ◽  
Author(s):  
Francescopaolo Granata ◽  
Barbara Balestrieri ◽  
Angelica Petraroli ◽  
Giorgio Giannattasio ◽  
Gianni Marone ◽  
...  
Keyword(s):  
Allergic Disorders ◽  
Phospholipases A

Desloratadine and levocetirizine – the importance in allergic diseases treatment

2020 ◽  
Vol 13 (3) ◽  
pp. 336-342
Author(s):  
Rafał Pawliczak
Keyword(s):  
Allergic Diseases ◽  
Efficacy And Safety ◽  
H1 Receptor ◽  
Receptor Blockers ◽  
Allergic Disorders

H1-receptor blockers (including levocetirizine and desloratadine) are employed in treatment of multiple allergic diseases. In this review we deliver data regarding efficacy and safety these two drugs. Moreover, we are comparing their properties. The individualization therapy is a mainstay in allergic disorders treatment.

Prevalence of allergic disorders among the population in the city of Mashhad, Northeast Iran

2008 ◽  
Vol 17 (2) ◽  
pp. 107-112 ◽  
Author(s):  
Abdol Reza Varasteh ◽  
Mohammad Fereidouni ◽  
Mohammad Taghi Shakeri ◽  
Fatemeh Vahedi ◽  
Ahmad Abolhasani ◽  
...  
Keyword(s):  
The City ◽  
Allergic Disorders ◽  
Northeast Iran

scholarly journals Inhibition of Neurotoxic Secretory Phospholipases A2Enzymatic, Edematogenic, and Myotoxic Activities by Harpalycin 2, an Isoflavone Isolated fromHarpalyce brasilianaBenth

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Rafael M. Ximenes ◽  
Marcelo M. Rabello ◽  
Renata M. Araújo ◽  
Edilberto R. Silveira ◽  
Fábio H. R. Fagundes ◽  
...  
Keyword(s):  
Active Site ◽  
Initial Step ◽  
Significant Inhibition ◽  
Lipid Mediators ◽  
Naja Naja ◽  
Crotalus Durissus Terrificus ◽  
Docking Calculations ◽  
Crotalus Durissus ◽  
Bothrops Pirajai ◽  
Phospholipases A

Secretory phospholipases A2(sPLA2) exert proinflammatory actions through lipid mediators. These enzymes have been found to be elevated in many inflammatory disorders such as rheumatoid arthritis, sepsis, and atherosclerosis. The aim of this study was to evaluate the effect of harpalycin 2 (Har2), an isoflavone isolated fromHarpalyce brasilianaBenth., in the enzymatic, edematogenic, and myotoxic activities of sPLA2fromBothrops pirajai, Crotalus durissus terrificus, Apis mellifera,andNaja najavenoms. Har2 inhibits all sPLA2tested. PrTX-III (B. pirajaivenom) was inhibited at about 58.7%, Cdt F15 (C. d. terrificusvenom) at 78.8%, Apis (from bee venom) at 87.7%, and Naja (N. najavenom) at 88.1%. Edema induced by exogenous sPLA2administration performed in mice paws showed significant inhibition by Har2 at the initial step. In addition, Har2 also inhibited the myotoxic activity of these sPLA2s. In order to understand how Har2 interacts with these enzymes, docking calculations were made, indicating that the residues His48 and Asp49 in the active site of these enzymes interacted powerfully with Har2 through hydrogen bonds. These data pointed to a possible anti-inflammatory activity of Har2 through sPLA2inhibition.

scholarly journals LYSOSOMAL PHOSPHOLIPASES A1 AND A2 OF NORMAL AND BACILLUS CALMETTE GUERIN-INDUCED ALVEOLAR MACROPHAGES

1973 ◽  
Vol 56 (3) ◽  
pp. 621-627 ◽  
Author(s):  
Richard C. Franson ◽  
Moseley Waite
Keyword(s):  
Acid Phosphatase ◽  
Alveolar Macrophages ◽  
Sucrose Gradient ◽  
Gradient Centrifugation ◽  
Marker Enzymes ◽  
Sucrose Gradient Centrifugation ◽  
Control Distribution ◽  
Specific Activities ◽  
Selective Increase ◽  
Phospholipases A

A single intravenous injection of 0.1 mg of heat-killed Bacillus Calmette Guérin (BCG) in 0.1 ml of Bayol F produced an accumulation of activated alveolar macrophages (BCG induced). Cells were collected 3.5–4.0 wk after injection. Phospholipases A and three lysosomal marker enzymes (acid phosphatase, ß-glucuronidase, and lysozyme) were measured in homogenates, and the distribution of the phospholipases A and lysosomal, mitochondrial, and microsomal marker enzymes were examined after sucrose gradient centrifugation of a postnuclear (1,000 g) supernatant. Homogenates of normal and BCG-induced macrophages contained phospholipases A1 and A2 which had optimal activity at pH 4.0 in the presence of 2.0 mM ethylenediaminetetraacetate (EDTA). These activities were inhibited 50–70% by 2.0 mM CaCl2. Homogenates of BCG-induced macrophages had specific activities of ß-glucuronidase, acid phosphatase, and lysozyme, which were increased 1.5- to 3.0-fold over the controls, whether expressed as activity per mg protein or activity per 107 cells. The specific activities of the phospholipases A, on the other hand, were consistently lower than those of the control. Distribution of the phospholipases A and the lysosomal marker enzymes after sucrose gradient centrifugation suggested that the phospholipases A active at pH 4.0 in the presence of EDTA are of lysosomal origin since: (a) BCG treatment caused a selective increase in the density of particles which contained both the phospholipases A and three lysosomal marker enzymes; and (b) since the density of mitochondria and microsomes were not affected by BCG treatment. The increase in the density of lysosomes seen here may be related to previously described morphologic changes of BCG-induced alveolar macrophages.

Anti-IgE in the treatment of allergic disorders in pediatrics

2010 ◽  
Vol 22 (6) ◽  
pp. 758-764 ◽  
Author(s):  
Ari J Fried ◽  
Hans C Oettgen
Keyword(s):  
Allergic Disorders

Atopic Dermatitis: Case Series of Individualized Homoeopathic Treatment

2021 ◽  
Vol 11 (11) ◽  
pp. 115-123
Author(s):  
Mousumi Das
Keyword(s):  
Atopic Dermatitis ◽  
Family History ◽  
Case Series ◽  
Calcineurin Inhibitors ◽  
Loss Of Function ◽  
Key Words Atopic Dermatitis ◽  
Topical Calcineurin Inhibitors ◽  
History Of ◽  
Allergic Disorders ◽  
Positive Results

Atopic dermatitis is a common, chronic, intensely pruritic, relapsing inflammatory skin disease that affects both children and adults. Atopic dermatitis is often the originating of a series of allergic disorders, mentioned as the "atopic march".There are numerous risk factors correlated with AD development. However, only two have always been related, and they are (1) family history of atopy and (2) loss of function mutations in the FLG gene. Topical anti-inflammatory therapy with topical corticosteroids or topical calcineurin inhibitors treatment are available in conventional therapy but sometimes it has been reported that patients are also benefited from Homoeopathic treatment. Four patients who presented at the outpatient department at National Institute of Homoeopathy, Saltlake, Kolkata with Atopic dermatitis and a family history of asthma, allergic rhinitis were treated with constitutional homoeopathic medicine. Details of consultations, treatment and assessment are summarized. A constitutional treatment thus eliminates the symptoms locally and internally as well as long-lasting relief from complaints. Common remedies include Mercuris Solubilis, Sulphur. This case series shows positive results of homoeopathy in the treatment of Atopic dermatitis. Key words: Atopic dermatitis, Family history, Individualized Homoeopathic treatment, Case series, repertorisation.

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