Publications by authors named "Man Hung Choi"

Epidemiological studies have established a positive association between obesity and the incidence of postmenopausal breast cancer. Moreover, it is known that obesity promotes stem cell-like properties of breast cancer cells. However, the cancer cell-autonomous mechanisms underlying this correlation are not well defined.

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Background: Maturity-onset diabetes of the young type 8 (MODY8 or CEL-MODY) is an inherited pancreatic disease characterized by chronic inflammation of the pancreas and diabetes. It is not known whether MODY8 patients have increased risk for developing pancreatic cancer. We investigated KRAS mutation load in duodenal juice from MODY8 patients, comparing with other groups of pancreatic disease.

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Article Synopsis
  • Short-chain 3-hydroxyacyl-CoA dehydrogenase (SCHAD) is a key mitochondrial enzyme involved in fatty acid oxidation and insulin secretion, with mutations in the HADH gene linked to congenital hyperinsulinism of infancy (CHI).
  • Researchers evaluated 16 missense variants of SCHAD, some associated with CHI and others identified through population sequencing, using a specially constructed HEK293 cell line lacking SCHAD to study protein stability and function.
  • The study found that certain CHI-associated variants resulted in unstable proteins or decreased enzymatic activity, while rare variants in the general population had similar properties to normal SCHAD, indicating that not all variants impact protein function.
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Background: Reliable methods are needed to identify patients with early-stage cancer or high-grade precancerous lesions in the pancreas. Analysis of pancreatic juice to detect somatic mutations could represent one such approach. Here we investigated the concordance between mutations found in the primary tumor and pancreatic juice from the same patient.

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A recent study reported that a special weekly scheduled time-restricted feeding regimen (TRF), i.e., no food consumption for 15h during the light (inactive) phase per day for 5 weekdays, attenuated the outcome of diverse nutritional challenges in response to high-fat diet in mice.

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