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Topic Review
Ileal Pouch–Anal Anastomosis and Pouchitis
Inflammatory bowel diseases, Crohn’s disease and ulcerative colitis, are life-long disorders characterized by the chronic relapsing inflammation of the gastrointestinal tract with the intermittent need for escalation treatment and, eventually, even surgery. The total proctocolectomy with ileal pouch–anal anastomosis (IPAA) is the surgical intervention of choice in subjects affected by ulcerative colitis (UC). Although IPAA provides satisfactory functional outcomes, it can be susceptible to some complications, including pouchitis as the most common.
  • 350
  • 18 Jul 2022
Topic Review
Endoscopic Vacuum Therapy in the Upper Gastrointestinal Tract
Anastomotic leaks after gastrointestinal surgery have an important impact on surgical outcomes because of the high morbidity and mortality rates. Multiple treatment options exist requiring an individualized patient-tailored treatment plan after multidisciplinary discussion. Endoscopic vacuum therapy (EVT) is a novel treatment option that is nowadays recognized as an effective and useful endoscopic approach to treat leaks or perforations in both the upper and lower gastrointestinal tract.
  • 348
  • 28 Jun 2023
Topic Review
An Introduction to Liver Cancers
The liver is the largest and most functionally diverse organ in the human body, and is known to be a critical hub for multiple physiological processes. It is highly vascularized in its nature, making it the most common site for cancer development, especially metastatic cancers. 
  • 347
  • 06 Jan 2023
Topic Review
Laparoscopic Proximal Gastrectomy and Laparoscopic Subtotal Gastrectomy
Laparoscopic proximal gastrectomy (LPG) and laparoscopic distal gastrectomy with a small remnant stomach, namely laparoscopic subtotal gastrectomy (LsTG), are alternative function-preserving procedures for laparoscopic total gastrectomy (LTG) of early proximal gastric cancer.
  • 347
  • 16 Jan 2023
Topic Review
Fibroblast Growth Factors for Nonalcoholic Fatty Liver Disease
Nonalcoholic fatty liver disease (NAFLD), a chronic condition associated with metabolic dysfunction and obesity, has reached epidemic proportions worldwide. Although early NAFLD can be treated with lifestyle changes, the treatment of advanced liver pathology, such as nonalcoholic steatohepatitis (NASH), remains a challenge. There are currently no FDA-approved drugs for NAFLD. Fibroblast growth factors (FGFs) play essential roles in lipid and carbohydrate metabolism and have recently emerged as promising therapeutic agents for metabolic diseases. Among them, endocrine members (FGF19 and FGF21) and classical members (FGF1 and FGF4) are key regulators of energy metabolism. FGF-based therapies have shown therapeutic benefits in patients with NAFLD, and substantial progress has recently been made in clinical trials. These FGF analogs are effective in alleviating steatosis, liver inflammation, and fibrosis.
  • 347
  • 24 Apr 2023
Topic Review
“Small Hepatocytes” in the Liver
Mature hepatocytes (MHs) in an adult rodent liver are categorized into the following three subpopulations based on their proliferative capability: type I cells (MH-I), which are committed progenitor cells that possess a high growth capability and basal hepatocytic functions; type II cells (MH-II), which possess a limited proliferative capability; and type III cells (MH-III), which lose the ability to divide (replicative senescence) and reach the final differentiated state. These subpopulations may explain the liver’s development and growth after birth. Generally, small-sized hepatocytes emerge in mammal livers. The cells are characterized by being morphologically identical to hepatocytes except for their size, which is substantially smaller than that of ordinary MHs. We initially discovered small hepatocytes (SHs) in the primary culture of rat hepatocytes.
  • 344
  • 21 Dec 2023
Topic Review
HER2 in Metastatic Colorectal Cancer
HER2 is an emerging biomarker in colorectal cancer (CRC). This oncogene plays an essential role in regulating cell proliferation, differentiation, migration, and, more in general, tumorigenesis and tumor progression. The most frequent types of HER2 alterations in CRC include gene amplification and missense mutations in 7–8% of CRC, often being mirrored by HER2 protein overexpression, representing founder events in solid tumors, including CRC.
  • 343
  • 09 Feb 2023
Topic Review
Exercise Is Medicine for Nonalcoholic Fatty Liver Disease
Upwards of 30% of the world’s population has nonalcoholic fatty liver disease (NAFLD). There is no regulatory-agency-approved effective drug therapy or cure, and lifestyle modification with dietary change and increased physical activity remains crucial in the clinical management of all types of NAFLD, leads to many benefits within and outside the liver in patients with NAFLD. These benefits include an improvement in liver fat, histologic NASH activity, change in body composition, gain in physical fitness, reduction in markers of cardiovascular risk, improvement in health-related quality of life and possibly a reduction in oncologic risk. 
  • 342
  • 06 Jun 2023
Topic Review
Artificial Intelligence Application to Pancreas Imaging
Despite the increasing rate of detection of incidental pancreatic cystic lesions (PCLs), current standard-of-care methods for their diagnosis and risk stratification remain inadequate. Intraductal papillary mucinous neoplasms (IPMNs) are the most prevalent PCLs. The existing modalities, including endoscopic ultrasound and cyst fluid analysis, only achieve accuracy rates of 65–75% in identifying carcinoma or high-grade dysplasia in IPMNs. Furthermore, surgical resection of PCLs reveals that up to half exhibit only low-grade dysplastic changes or benign neoplasms. To reduce unnecessary and high-risk pancreatic surgeries, more precise diagnostic techniques are necessary. A promising approach involves integrating existing data, such as clinical features, cyst morphology, and data from cyst fluid analysis, with confocal endomicroscopy and radiomics to enhance the prediction of advanced neoplasms in PCLs. Artificial intelligence and machine learning modalities can play a crucial role in achieving this goal. 
  • 341
  • 30 Oct 2023
Topic Review
Pancreatic and Biliary Neoplasms
Pancreatic cancer and cholangiocarcinoma are aggressive diseases mostly diagnosed at an advanced and inoperable stage. 
  • 340
  • 27 Jan 2022
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