Cats most commonly receive toxic amounts of acetaminophen (APAP) because owners medicate them without consulting a veterinarian. The aim of this study was to compare the hepatoprotective action of silymarin and N-acetylcysteine (NAC) against APAP poisoning. Twenty healthy cats were randomly allotted to five equal groups. Animals in group A were given APAP (single dose 150 mg/kg, p.o.); groups B and C consisted of cats that received NAC (100 mg/kg, p.o.) or silymarin (30 mg/kg, p.o.) concurrent with APAP administration respectively; groups D and E were treated like groups B and C, respectively, but 4 h after APAP administration. The serum concentrations of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), methemoglobin, and total and direct bilirubin were measured before APAP administration and 4, 24, and 72 h later. A single oral administration of APAP significantly elevated serum concentrations of ALT, AST, ALP, LDH, methemoglobin, and total and direct bilirubin. In both the groups receiving APAP plus NAC or silymarin, levels of serum enzyme activities, methemoglobin, and total and direct bilirubin remained within the normal values. It was concluded that silymarin as well as NAC can protect liver tissue against oxidative stress in cats with an APAP intoxication.
The alterations of circulating adipocytokines have been reported in thyroid diseases or type 2 diabetes mellitus (T2DM), but such data in T2DM coincident with clinical and subclinical thyroid-dysfunctions are limited, and remain to be investigated. We studied the changes in serum chemerin, resisitin and visfatin in T2DM patients with thyroid dysfunctions, and their association with inflammatory and insulin resistance-markers. A total of 272 female and male Iranian participants were selected and divided into six groups: the euthyroid group,T2DM, T2DM coincident with clinical and sub clinical hypothyroidism (SC-HO, and C-HO), and T2DM coincident with clinical and sub clinical hyperthyroidism (SC-HR, C-HR).Demographic characteristics, serum levels of adipocytokines, thyroid hormones, inflammatory factors (IL1-β, IL-6 and CRP) and insulin resistance-markers were determined in all participants. T2DM patients with clinical thyroid dysfunctions showed higher levels of circulating resistin, visfatin, chemerin and inflammatory factors, compared with the T2DM group and T2DM coexisted with subclinical thyroid diseases. No significant differences were observed in circulating adipocytokines and inflammatory markers between T2DM coexisting with subclinical thyroid diseases and those without thyroid dysfunctions. Our results revealed that clinical thyroid dysfunction in T2DM patients was associated with elevated levels of circulating resistin, chemerin, visfatin and inflammatory factors, while no such alteration was detected in T2DM coincident with subclinical thyroid dysfunction.
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