Pleurodesis Induction in Rats by Copaiba (Copaifera multijuga Hayne) Oil

Table 1

Distribution according to the mean of the grade of microscopic alterations according to parietal and visceral inflammation in relation to the groups.

𝑇	Acute inflammation		𝑃^∗	Chronic inflammation		𝑃^∗
	Copaiba	Silver nitrate		Copaiba	Silver nitrate
	Mean ± SD	Mean ± SD		Mean ± SD	Mean ± SD
Parietal pleura
24 h	1.63 ± 1.06	0.38 ± 0.52	0.010	0.00 ± 0.00	0.38 ± 0.52	0.060
48 h	0.50 ± 0.78	0.50 ± 0.78	0.999	0.88 ± 0.83	0.50 ± 0.53	0.303
72 h	1.38 ± 0.92	0.25 ± 0.46	0.008	0.00 ± 0.00	0.50 ± 0.53	0.019
504 h	0.00 ± 0.00	0.25 ± 0.46	0.149	0.38 ± 0.52	0.13 ± 0.35	0.278
Visceral pleura
24 h	1.12 ± 0.64	0.88 ± 0.83	0.513	0.13 ± 0.35	0.38 ± 0.52	0.278
48 h	0.50 ± 0.78	0.50 ± 0.78	0.999	0.63 ± 0.52	0.63 ± 0.52	0.999
72 h	1.13 ± 0.83	0.88 ± 0.83	0.559	0.13 ± 0.35	0.38 ± 0.52	0.278
504 h	0.13 ± 0.35	0.13 ± 0.35	0.999	0.75 ± 0.71	0.75 ± 0.46	0.902

∗Student’s 𝑡-test. Value of 𝑃 in bold italic indicates statistical difference at 5%. 𝑇: time of euthanasia.