Publications by authors named "Kuo-Cheng Lan"

Article Synopsis
  • Exosomes are small vesicles that facilitate communication between cells by transporting various molecules like mRNAs and proteins, and they are involved in regulating insulin secretion and glucose levels, especially in diabetic conditions.
  • This study explored the effects of exosomes from pancreatic islet β-cells on insulin secretion in naïve β-cells, revealing that they impaired glucose-stimulated insulin secretion (GSIS) without harming cell viability.
  • The exosomes altered key protein levels related to insulin signaling and inflammation, and bioinformatics analysis indicated that certain microRNAs carried by these exosomes may play a significant role in the dysregulation of GSIS in recipient β-cells.
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Osteosarcoma is an extremely aggressive bone cancer with poor prognosis. Nε-(1-Carboxymethyl)-L-lysine (CML), an advanced glycation end product (AGE), can link to cancer progression, tumorigenesis and metastasis, although the underlying mechanism remains unclear. The role of CML in osteosarcoma progression is still unclear.

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The accumulation of the uremic toxin indoxyl sulfate (IS) is a key pathological feature of chronic kidney disease (CKD). The effect of IS on ferroptosis and the role of IS-related ferroptosis in CKD are not well understood. We used a renal tubular cell model and an adenine-induced CKD mouse model to explore whether IS induces ferroptosis and injury and affects iron metabolism in the renal cells and the kidneys.

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Despite epidemiological evidence that suggests diabetes mellitus is a risk factor for cancer, the link between diabetes mellitus and primary bone cancer is rarely discussed. Chondrosarcomas are primary malignant cartilage tumors with poor prognosis and high metastatic potential. It remains unclear whether hyperglycemia affects the stemness and malignancy of chondrosarcoma cells.

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The elderly have higher concentrations of advanced glycation end-products (AGEs). AGEs are considered risk factors that accelerate aging and cause diabetic nephropathy. The effects of AGEs on renal function in the elderly remain to be clarified.

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Steady-calcium formula (SCF), a functional food mixture with potential of joint care, contains five major ingredients. However, the uncertain cross-reactivity among these included ingredients cannot be excluded. Hence, it is important to ensure the safety of this mixture.

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Background: Organotin pollutant tributyltin (TBT) is an environmental endocrine disrupting chemical and is a known obesogen and diabetogen. TBT can be detected in human following consumption of contaminated seafood or water. The decrease in muscle strength and quality has been shown to be associated with type 2 diabetes in older adults.

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Angiopoietin-like protein 1 (ANGPTL1) is a member of the ANGPTL family that suppresses angiogenesis, cancer invasion, metastasis, and cancer progression. ANGPTL1 is down-regulated in various cancers including colorectal cancer (CRC); however, the effects and mechanisms of ANGPTL1 on liver metastasis and cancer stemness in CRC are poorly understood. In the present study, we identified that ANGPTL1 was down-regulated in CRC and inversely correlated with metastasis and poor clinical outcomes in CRC patients form the ONCOMINE database and Human Tissue Microarray staining.

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Article Synopsis
  • Patients in Taiwan receiving bivalent freeze-dried neurotoxic antivenom show higher survival rates after snake bites but also experience necrotic wound changes.
  • The study aimed to evaluate antivenom effectiveness in preventing necrosis based on the minimum necrotizing dose (MND) of venom and to identify the venom components causing necrosis.
  • Results indicated that cytotoxins (CTXs) are the primary factors inducing necrosis, while the antivenom did not effectively neutralize venom-induced necrosis as the MND could not be identified.
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Urinary acrolein adduct levels have been reported to be increased in both habitual smokers and type-2 diabetic patients. The impairment of glucose transport in skeletal muscles is a major factor responsible for glucose uptake reduction in type-2 diabetic patients. The effect of acrolein on glucose metabolism in skeletal muscle remains unclear.

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Advanced glycation end products (AGEs) are associated with the pathogenesis of diabetic vascular complications. Induction of the endothelial-to-mesenchymal transition (EndMT) is associated with the pathogenesis of fibrotic diseases. The roles of AGEs in islet EndMT induction and diabetes-related islet microvasculopathy and fibrosis remain unclear.

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Arsenic is a toxic metalloid. Infants with a low birth-weight have been observed in areas with high-level arsenic in drinking water ranging from 463 to 1025 μg/L. A distal muscular atrophy side effect has been observed in acute promyelocytic leukemia patients treated with arsenic trioxide (AsO) for therapy.

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Arsenic, a widely distributed toxic metalloid, has been found to be associated with the low-birth-weight infants and the impairment of muscle regenerative capacity in areas with high levels of arsenic in drinking water. The distal muscular atrophy is one of side effects of arsenic trioxide (AsO) for acute promyelocytic leukemia therapy. We hypothesized that arsenic may be a potential risk factor for skeletal muscle atrophy.

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Benzo[a]pyrene (BaP) is a polycyclic aromatic hydrocarbon found in tobacco smoke and air pollution products. BaP exposure has been recently suggested to be a risk factor for hypertension in coke oven workers. The mechanisms of BaP on vascular smooth muscle function remain unclear.

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In this study, the pregnant female Sprague Dawley (SD) rats were used to evaluate the potential toxicological effect of strontium citrate, a dietary supplement, on embryo-fetal development. Strontium citrate at doses of 0 mg/kg, 680 mg/kg, 1360 mg/kg, and 2267 mg/kg was administrated orally by gavage to rats at day 6 to day 15 of pregnancy. Each group contained 20 pregnant rats.

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A population of muscle-derived stem/progenitor cells (MDSPCs) contained in skeletal muscle is responsible for muscle regeneration. MDSPCs from mouse muscle have been shown to be capable of differentiating into pancreatic islet-like cells. However, the potency of MDSPCs to differentiate into functional islet-like cluster remains to be confirmed.

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Article Synopsis
  • - Tributyltin (TBT) is an endocrine disruptor found in food and water, detrimental to pancreatic β-cells in mice, causing toxicity and apoptosis, particularly at low doses.
  • - The study identified mechanisms of TBT's effects, showing it increases reactive oxygen species and disrupts insulin secretion, with specific protective effects noted from antioxidants like N-acetylcysteine (NAC) and JNK inhibitors.
  • - Four weeks of TBT exposure led to reduced insulin levels and higher blood glucose in mice, but these effects were reversed after a two-week cessation of exposure, highlighting TBT's impact on glucose metabolism through oxidative stress.
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Sepsis is a life-threatening medical condition. Salidroside, a substance isolated from Rhodiola rosea, possesses antioxidant and anti-inflammatory properties. The effect and mechanism of salidroside on sepsis-induced acute lung injury still remains to be well clarified.

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Benzo[a]pyrene, a ubiquitous environmental pollutant, has been suggested to be capable of initiating and/or accelerating atherosclerosis. Accumulation of vascular smooth muscle cells (VSMCs) in vessel intima is a hallmark of atherosclerosis. Nitric oxide (NO) can suppress VSMCs proliferation and induce VSMCs apoptosis.

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Tributyltin (TBT) is an endocrine disruptor. TBT can be found in food and in human tissues and blood. Several animal studies revealed that organotins induced diabetes with decreased insulin secretion.

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The epidemiological and experimental evidence suggests that diabetes can be an independent risk factor for osteoarthritis. The osteoarthritis-like cartilage damage has been shown in streptozotocin-induced diabetic mice. The therapeutic effects of human skeletal muscle-derived progenitor cells (HSMPCs) on diabetic osteoarthritis still remain unclear.

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Aging and diabetes are known to be the major cause to affect the progression of osteoarthritis (OA). Advanced glycation end products (AGEs) have been observed to accumulate in various organs especially in joint tissue and do damage to the joint tissue during aging and diabetes. Synovial angiogenesis and inflammation are observed across the full range of OA severity.

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Myoblast proliferation and differentiation are essential for skeletal muscle regeneration. Myoblast proliferation is a critical step in the growth and maintenance of skeletal muscle. The precise action of inorganic arsenic on myoblast growth has not been investigated.

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Microvascular complications eventually affect nearly all patients with diabetes. Advanced glycation end-products (AGEs) resulting from hyperglycemia are a complex and heterogeneous group of compounds that accumulate in the plasma and tissues in diabetic patients. They are responsible for both endothelial dysfunction and diabetic vasculopathy.

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Synopsis of recent research by authors named "Kuo-Cheng Lan"

  • - Kuo-Cheng Lan's recent research explores the role of various biochemical compounds and processes in disease progression, particularly focusing on their interactions with insulin secretion, cancer malignancy, and renal dysfunction.
  • - Key findings indicate that β-cell-derived exosomes negatively regulate insulin secretion, while advanced glycation end products (AGEs) and specific signaling pathways contribute to metastasis and cancer stemness in conditions like osteosarcoma and chondrosarcoma.
  • - Additional studies highlight the detrimental effects of uremic toxins on kidney health, emphasizing ferroptosis in chronic kidney disease, and investigate the potential therapeutic effects of compounds such as resveratrol on AGE-related renal dysfunction.