Related Experiment Video
Updated: Jan 30, 2026

An Orthotopic Resectional Mouse Model of Pancreatic Cancer
Published on: September 24, 2020
[Three Cases of Resectable Advanced Gastric Cancer Treated with Neoadjuvant Chemotherapy]
Nariatsu Sato1, Akira Nakayama, Yuki Takai
1Dept. of Digestive Surgery, Keiju Medical Center.
Abstract:
Three patients diagnosed with HER2-negative resectable advanced gastric cancer with extensive regional lymph node metastases were treated with neoadjuvant chemotherapy(NAC), followed by gastrectomy with D2lymph node dissection. One patient received four 21-day courses of S-1 plus oxaliplatin(G-SOX), and pathological effect(PE)was Grade 3. Two patients received four 21-day courses of capecitabine plus oxaliplatin(CapeOX), and each PE was Grade 2and Grade 1a, respectively. One patient in poor PE was with recurrent liver and peritoneal metastases. This suggested that for resectable advanced gastric cancer with extensive regional lymph node metastases, NAC by SOX or CapeOX was effective for some patients.
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Overview of Advanced Functional Groups
Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.
Extraction: Advanced Methods

