Intra-Articular Injection of a Nanosuspension of Tetramethylpyrazine Dihydroxynaphthalenate for Stronger and Longer-Lasting Effects Against Osteoarthritis

2021 ◽  
Vol 17 (6) ◽  
pp. 1199-1207
Author(s):  
Hanmei Li ◽  
Hongyi Zhuo ◽  
Dan Yin ◽  
Wei Li ◽  
Yamei Zhang ◽  
...  

Tetramethylpyrazine (TMP), isolated from the rhizome of the traditional Chinese medicinal plant Chuanxiong (Ligusticum wallichii Franchat) shows therapeutic efficacy against osteoarthritis. After intra-articular injection, the retention time of TMP in the joint cavity is short, which limits its treatment effect. To avoid this problem, the present study explored the preparation of a TMP nanosuspension (TMP-NS) based on hydrophobic ion pairing. TMP-NS showed a particle size of approximately 588 nm and, after intra-articular injection in rats, it had longer retention in the articular cavity, higher TMP concentrations in joints, and greater anti-osteoarthritic efficacy than TMP solution. TMP-NS didn’t cause significant inflammation at the joint. These results suggest that TMP-NS may strengthen and prolong the therapeutic efficacy of TMP against osteoarthritis without systemic toxicity.

Coronaviruses ◽  
2020 ◽  
Vol 01 ◽  
Author(s):  
Afzal Hussain ◽  
Ashfaq Hussain ◽  
Chandan Kumar Verma

: Nigella sativa (Family Ranunculaceae) is a common medicinal plant all across the world. It is quite popular in different traditional medicinal systems such as Unani, Ayurveda, Tibb, and Siddha. Oil and Seeds have a long tradition of folk medicine utilized in different medicinal systems and food. The seeds of N. Sativa have indeed been widely applied in the treatment of many diseases, ailments, and also the immune booster. Our goal primarily concentrated on the therapeutic efficacy of Nigella sativa in combating the COVID-19 pandemic.


Food Control ◽  
2007 ◽  
Vol 18 (12) ◽  
pp. 1547-1554 ◽  
Author(s):  
Sheng-Hsien Lee ◽  
Ku-Shang Chang ◽  
Min-Sheng Su ◽  
Yung-Sheng Huang ◽  
Hung-Der Jang

2017 ◽  
Vol 15 (1) ◽  
pp. 216-225 ◽  
Author(s):  
Hoang D. Lu ◽  
Paradorn Rummaneethorn ◽  
Kurt D. Ristroph ◽  
Robert K. Prud’homme

1998 ◽  
Vol 1998 ◽  
pp. 136-136
Author(s):  
M.D. Fraser ◽  
D.H. Baker

To date, attempts to account for reported differences in digestive efficiency of camelids and ruminants have focused on factors such as stomach motility and the retention time of feed particles. The physical breakdown of forage into particles small enough to pass through the reticulo-omasal orifice is one of the major factors influencing the rate of passage of digesta from the reticulo-rumen in ruminants. Two of the main processes involved in particle size reduction are chewing (pre- and post-regurgitation) and microbial fermentation. While the characteristic vertical and horizontal jaw movement which occurs during mastication in the camelid is believed to allow for efficient use of the premolars and molars in cutting and grinding fibrous feeds, there have been no comparative studies to verify this, and to assess the contribution of chewing to differences in digestibility coefficients. The aim of this experiment was to directly compare particle breakdown during chewing by guanacos and sheep.


Planta Medica ◽  
2006 ◽  
Vol 73 (01) ◽  
pp. 91-93 ◽  
Author(s):  
Heng-Gang Xue ◽  
Song-Dong Zhou ◽  
Xing-Jin He ◽  
Yan Yu

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