Therapeutic efficacy of protein compound extraction fromMetapenaeusaffinisagainst glucosamine sulphate-induced nephrotoxicity in male rats

2020 ◽  
Vol 13 (01) ◽  
Keyword(s):  
Therapeutic Efficacy ◽  
Male Rats ◽  
Glucosamine Sulphate

Therapeutic efficacy of sodium nitrite and 4-dimethylaminophenol or hydroxylamine co-administration against cyanide poisoning in rats

1995 ◽  
Vol 14 (1) ◽  
pp. 29-33 ◽  
Author(s):  
R. Bhattacharya
Keyword(s):  
Sodium Nitrite ◽  
Therapeutic Efficacy ◽  
Combined Therapy ◽  
Combined Treatment ◽  
Potassium Cyanide ◽  
Male Rats ◽  
Time Intervals ◽  
Degree Of Protection ◽  
Oxidase Enzyme ◽  
Index Ratio

1 The therapeutic efficacy of combined treatment of sodium nitrite (NaNO2) and 4-dimethylaminophenol (DMAP) or hydroxylamine (H2NOH) was investigated in potassium cyanide (KCN) intoxication in male rats. 2 Therapy with NaNO 2 (0.27 mmol kg-1) + DMAP (0.09 mmol kg-1) or NaNO2 + H2NOH (0.09 mmol kg-1, produced a protection index (ratio of LD50 of KCN in rats receiving therapy to an LD50 of KCN in rats given only 0.9% saline) of 2.5 and 2.0 respectively. 3 Both the regimens exhibited a beneficial effect in terms of improving the survival time and postural defects in rats exposed to 2 LD50 KCN. 4 NaNO2 + DMAP showed a significant protective effect in the disposition of the plasma cyanide level at different time intervals. 5 The NaNO2 + DMAP regimen was superior to NaNO2 + H2NOH in terms of reactivating the inhibited brain cytochrome oxidase enzyme. 6 The addition of sodium thiosulphate (Na2S2O3) in both the regimens increased the degree of protection. 7 The results suggest that combined therapy with NaNO2 + DMAP could significantly reduce the toxic effects of cyanide, compared with NaNO2+H2NOH treatment.

scholarly journals Effects of Palm Tocotrienol-Rich Fraction Alone or in Combination with Glucosamine Sulphate on Grip Strength, Cartilage Structure and Joint Remodelling Markers in a Rat Model of Osteoarthritis

2021 ◽  
Vol 11 (18) ◽  
pp. 8577
Author(s):  
Hiba Murtadha Al-Saadi ◽  
Kok-Yong Chin ◽  
Fairus Ahmad ◽  
Elvy Suhana Mohd Ramli ◽  
Azlan Mohd Arlamsyah ◽  
...  
Keyword(s):  
Body Weight ◽  
Grip Strength ◽  
Matrix Protein ◽  
Cartilage Damage ◽  
The Body ◽  
Joint Disease ◽  
Male Rats ◽  
Individual Treatment ◽  
Glucosamine Sulphate ◽  
Tocotrienol Rich Fraction

Background: Osteoarthritis is a degenerative joint disease lacking disease-modifying therapeutic agents. This study aimed to compare the effects of palm tocotrienol-rich fraction (TRF), glucosamine sulphate, and both agents combined in rats with osteoarthritis induced by monosodium iodoacetate (MIA). Methods: Thirty adult male rats were randomized into normal control, and osteoarthritis groups were treated orally daily with vehicle, palm TRF (100 mg/kg), glucosamine sulphate (250 mg/kg), and both agents combined for 4 weeks. Body weight and grip strength were measured weekly. After being sacrificed, the joints and blood were harvested for histology and serum cartilage oligomeric matrix protein (COMP) levels. Results: The body weight of the rats receiving treatment rebounded significantly after an initial reduction (vs osteoarthritic control, p < 0.05). The rats receiving combined treatments showed significantly better grip strength than the osteoarthritic control and individual treatment groups (p < 0.05). The serum COMP level was lower in all the treated groups (vs osteoarthritic control, p < 0.05). Cartilage histology of the treated rats was not significantly improved (vs osteoarthritic control, p > 0.05). Conclusion: The combination of palm TRF and glucosamine sulphate was more effective than individual agents in improving the grip strength of the rats, but the cartilage damage might need more time to heal.

The Morphology of the Rat Kidney Following Folic Acid Administration

1970 ◽  
Vol 28 ◽  
pp. 200-201
Author(s):  
Aline Byrnes ◽  
Elsa E. Ramos ◽  
Minoru Suzuki ◽  
E.D. Mayfield
Keyword(s):  
Folic Acid ◽  
De Novo ◽  
Specific Activity ◽  
Rat Kidney ◽  
Present Report ◽  
Intracellular Localization ◽  
Male Rats ◽  
Renal Hypertrophy ◽  
Electron Microscopic ◽  
Biochemical Alterations

Renal hypertrophy was induced in 100 g male rats by the injection of 250 mg folic acid (FA) dissolved in 0.3 M NaHCO3/kg body weight (i.v.). Preliminary studies of the biochemical alterations in ribonucleic acid (RNA) metabolism of the renal tissue have been reported recently (1). They are: RNA content and concentration, orotic acid-c14 incorporation into RNA and acid soluble nucleotide pool, intracellular localization of the newly synthesized RNA, and the specific activity of enzymes of the de novo pyrimidine biosynthesis pathway. The present report describes the light and electron microscopic observations in these animals. For light microscopy, kidney slices were fixed in formalin, embedded, sectioned, and stained with H & E and PAS.

Fine Structural Changes in the Adenohypophyses of Rats Following Destruction of the Pituitary Stalk

1977 ◽  
Vol 35 ◽  
pp. 496-497
Author(s):  
K. Kovacs ◽  
E. Horvath ◽  
J. M. Bilbao ◽  
F. A. Laszlo ◽  
I. Domokos
Keyword(s):  
Structural Changes ◽  
Tissue Injury ◽  
Anterior Lobe ◽  
Uranyl Acetate ◽  
Male Rats ◽  
Pituitary Stalk ◽  
Sequence Of Events ◽  
Pituitary Glands ◽  
Electrolytic Lesions ◽  
Ultrathin Sections

Electrolytic lesions of the pituitary stalk in rats interrupt adenohypophysial blood flow and result in massive infarction of the anterior lobe. In order to obtain a deeper insight into the morphogenesis of tissue injury and to reveal the sequence of events, a fine structural investigation was undertaken on adenohypophyses of rats at various intervals following destruction of the pituitary stalk.The pituitary stalk was destroyed electrolytically, with a Horsley-Clarke apparatus on 27 male rats of the R-Amsterdam strain, weighing 180-200 g. Thirty minutes, 1,2,4,6 and 24 hours after surgery the animals were perfused with a glutaraldehyde-formalin solution. The skulls were then opened and the pituitary glands removed. The anterior lobes were fixed in glutaraldehyde-formalin solution, postfixed in osmium tetroxide and embedded in Durcupan. Ultrathin sections were stained with uranyl acetate and lead citrate and investigated with a Philips 300 electron microscope.

Ultrastructural Localization of Acetylcholinesterase in the Arcuate Nucleus and Median Eminence of the Rat

1977 ◽  
Vol 35 ◽  
pp. 440-441
Author(s):  
K.A. Carson ◽  
C.B. Nemeroff ◽  
M.S. Rone ◽  
J.S. Kizer ◽  
J.S. Hanker
Keyword(s):  
Choline Acetyltransferase ◽  
Median Eminence ◽  
Arcuate Nucleus ◽  
Cholinergic Neurons ◽  
Ultrastructural Localization ◽  
Male Rats ◽  
Neonatal Rats ◽  
Good Marker ◽  
Chemical Studies ◽  
High Doses

Biochemical, physiological, pharmacological, and more recently enzyme histo- chemical data have indicated that cholinergic circuits exist in the hypothalamus. Ultrastructural correlates of these pathways such as acetylcholinesterase (AchE) positive neurons in the arcuate nucleus (ARC) and stained terminals in the median eminence (ME) have yet to be described. Initial studies in our laboratories utilizing chemical lesioning and microdissection techniques coupled with microchemical and light microscopic enzyme histo- chemical studies suggested the existence of cholinergic neurons in the ARC which project to the ME (1). Furthermore, in adult male rats with Halasz deafferentations (hypothalamic islands composed primarily of the isolated ARC and the ME) choline acetyltransferase (ChAc) activity, a good marker for cholinergic neurons, was not significantly reduced in the ME and was only somewhat reduced in the ARC (2). Treatment of neonatal rats with high doses of monosodium 1-glutamate (MSG) results in a lesion largely restricted to the neurons of the ARC.

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