There are multiple definitions:

1. N-acetyl-L-cysteine(English)

   • an antioxidant and a precursor to GSH. Also a mucolytic agent
   • GSH, Beclin-1, HCC, HepG2, HS, JNK, MAPK, ROS, WT, 3-MA
   • Mitochondrion, Apoptosis, Asthma
   • https://doi.org…fct.2018.04.004
   • https://doi.org…155/2015/396107

2. neoadjuvant chemotherapy(English)

   • developed as a systematic approach before definitive surgery for the treatment of locally advanced or inoperable breast cancer such as inflammatory breast cancer in the past. Currently, the subject has expanded to include patients with early-stage, operable breast cancer because it is revealed that the achievement of a pCR is associated with excellent long-term outcomes, especially in patients with aggressive phenotype breast cancer
   • EORTC, pCR, NACT, CLN, AC, NCDB
   • Oncology, Chemotherapy, Mammary gland
   • https://doi.org…178223420980377
   • https://doi.org…434-024-15052-y
   • https://doi.org…434-018-07128-3

3. nipple-areola complex(English)

   • reconstruction concerns nipple and areolar area, ideally requiring symmetry in position, size, shape, texture, and pigmentation. Reconstruction techniques comprises of composite nipple grafts, local flap, flaps with autologous graft augmentation, flaps with alloplastic augmentation and flaps with allograft augmentation. Areolar reconstruction by using skin grafting and tattooing are the easiest and most common techniques. Patients with loss of the nipple and areola from cancer excision, trauma, or congenital absence continue to experience psychological distress even long after breast mound reconstruction has taken place. Indications include congenital or developmental pathology (athelia, amastia), posttraumatic or burn deformities, and complications from breast surgery such as reduction mammaplasty. In the cases of breast cancer, whole breast reconstruction following mastectomy can provide significant psychosocial benefits for women
   • IMF, MRM, SSM, TRAM
   • Gynecology, Surgery, Mammary gland
   • https://dx.doi.…pen-2015-010151
   • https://doi.org…684X.2014.02.06

4. nucleus accumbens(Latin)

   • DHβE, PPT, VTA
   • Brain (dys)function
   • https://doi.org…res.2015.12.064

5. National Amyloidosis Center(English)

   • part of the University College London (UCL) Division of Medicine. It is situated at the Royal Free Hospital in Hampstead, London. The NAC has been at the cutting edge of treatment and research
   • ATTR, CA, cTNT, eGFR, FLC-diff, NT-proBNP, TTR, vATTR
   • Cardiology, Pathology
   • https://www.ucl…loidosis-centre
   • https://doi.org/10.12703/r/10-31
   • https://doi.org…ard.2023.131354