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Table 1 Comparative aspects regarding tumor type and size in Wistar rats of Groups 1 (n = 9) and 2 (n = 8)

From: Effects of astaxanthin supplementation on chemically induced tumorigenesis in Wistar rats

Rat no. Group 1 (exposed to MNU) Group 2 (exposed to MNU and ASTA)
Tumor Size (cm) Tumor Size (cm)
1 - nephroblastoma 2.3 - -
- bronchial gland carcinoma 0.4
- sebaceous carcinoma 0.2
2 - differentiated liposarcoma (large ligaments) 0.2-4 - nephroblastoma 1.6/1.2
- liposarcoma (gastro-splenic ligament) 0.2-4
- liposarcoma (closely to pancreatic region) 1
- liposarcoma (mesentery) 1
- liposarcoma (inguinal lymph nodes) 1
- bronchial gland carcinoma 0.3
- nephroblastoma 1.5
3 - hemangiosarcoma in abdominal cavity 7.5 - bronchial gland carcinoma 0.1
4 - bronchial gland carcinoma 1.5 - -
- nephroblastoma – right kidney 0.9
- hemangiosarcoma – left kidney 6.8
5 - nephroblastoma 0.3 - nephroblastoma 0.3
- inguinal lipoma 2.3 - differentiated liposarcoma (mediastine) 1.4/0.7
- squamous carcinoma (inguinal region) 1.2 - differentiated liposarcoma (axillary region) 0.3
6 - simple mammary adenoma 0.5 - bronchial gland carcinoma 0.1-0.2
- cholangiocarcinoma 0.3
7 - small cell lung carcinoma 0.3 - simple ductal papillary mammary carcinoma 0.5
- mammary fibroadenoma 2.5/1.5
8 - simple mammary fibroadenoma 6.5 - simple ductal papillary mammary carcinoma 4
9 - simple mammary adenoma 0.3 - rat excluded from study  
  1. Tumors were not present in rats of Groups 3 and 4 (data not included in table). MNU: N-Methyl-N-nitrosourea; ASTA: Astaxanthin.