Publications by authors named "Jojima T"

Article Synopsis
  • Imeglimin, a new antidiabetic medication, was tested as an add-on therapy to metformin in patients with type 2 diabetes to see how it affects glucose levels and variability over 24 hours.
  • The study involved 30 patients using continuous glucose monitoring (CGM) for 14 days, with imeglimin introduced on day 7, measuring effects before and after treatment.
  • Results showed a significant decrease in 24-hour average glucose levels and increased time spent within the target glucose range, indicating improved glycemic control and variability with imeglimin addition, especially in those with higher baseline HDL cholesterol levels.
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Aims/introduction: In patients with diabetes, obesity is an aggravating factor for glycemic control and its vascular complications. However, the psychological and behavioral characteristics of those patients with obesity have not been fully clarified. This study investigated eating and coping behavior, personality traits, quality of life (QOL), and depression status in patients with diabetes with or without obesity.

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Unlabelled: Immune cell function is impaired in hyperglycemic patients with diabetes but thought to improve with normalization of blood glucose levels. In this study, we hypothesized that this improvement might involve changes in T cell function. We compared the peripheral T cell markers between the people with and without type 2 diabetes (T2D) admitted to our hospital for glycemic control, and then in patients with T2D before and after the improvement of hyperglycemia by inpatient treatment.

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Article Synopsis
  • A 47-year-old woman with myotonic dystrophy experienced poor glycemic control despite treatment with pioglitazone and insulin after a traumatic injury.
  • The addition of a GLP-1 receptor agonist significantly improved her blood sugar levels, allowing for the eventual withdrawal of insulin.
  • Genetic testing revealed a specific variant in the GLP1R gene, commonly found in Asia, which enhances insulin production in response to GLP-1 treatment, marking a unique case of myotonic dystrophy linked to this gene polymorphism in Japan.
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Background: To investigate effects of empagliflozin on plasma amino acids in people with type 2 diabetes.

Research Design And Methods: In a randomized, active-controlled, open-label trial, 58 patients with type 2 diabetes were randomized to 10 mg/day empagliflozin ( = 29) or standard treatment without empagliflozin (control group,  = 29) and treated for 12 weeks. We obtained blood samples at baseline and 12 weeks and assessed the plasma amino acid profile by liquid chromatography-mass spectrometry liquid chromatography.

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Aims: To investigate whether higher serum CCL11/Eotaxin-1, a biomarker for aging and neurodegenerative and neuroinflammatory disorders, is associated with diabetic sensorimotor polyneuropathy (DSPN), peripheral nerve dysfunction, and cardiac autonomic neuropathy in people with type 2 diabetes.

Methods: This cross-sectional study included 106 patients with type 2 diabetes and 40 healthy controls, matched for the age and sex distribution of the diabetes group as a whole. The CC chemokines CCL11/Eotaxin-1 and CCL22/MDC were measured in fasting serum samples.

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Non-alcoholic fatty liver disease (NAFLD) is increasing globally, and seeking therapeutic molecule targets is urgent. Several studies have demonstrated that IL-33 plays an important role in the progression of Non-alcoholic steatohepatitis (NASH) with fibrosis and the proliferation of hepatocellular carcinoma (HCC). However, whether the inhibition of IL-33 signaling prevents NAFLD from progressing to NASH and HCC has not been clarified.

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Objective: Cardiac autonomic neuropathy (CAN) is an independent risk factor for cardiovascular mortality and also is associated with a high risk of lethal arrhythmias and sudden death in people with type 1 or 2 diabetes. Heart rate variability (HRV) is an index of cardiac autonomic function. To investigate the relationship between HRV and arterial stiffness evaluated by the cardio-ankle vascular index (CAVI), a relatively new marker for arterial stiffness and a predictor of cardiovascular disease, in patients with type 2 diabetes.

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Nonalcoholic fatty liver disease (NAFLD) is an emerging worldwide health concern. The disease may involve immune cells including T cells, but little is known about the role(s) of the innate-like T cells in the liver. Furthermore, the most abundant innate-like T cells in the human liver are mucosal-associated invariant T (MAIT) cells, but the involvement of MAIT cells in NAFLD remains largely unexplored because of their paucity in mice.

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Aims: To investigate synergistic effects of liver fibrosis evaluated by FibroScan and sarcopenia on endothelial function and arterial stiffness in patients with type 2 diabetes.

Methods: This cross-sectional study evaluated liver fibrosis (LF) and sarcopenia in 115 patients with type 2 diabetes. LF was assessed as the liver stiffness measurement (LSM) in transient elastography (FibroScan) and was defined as an LSM greater than or equal to 8.

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Objective: We investigated longitudinal changes in circulating CD4 and CD8 T cells positive for programed cell death protein-1 (PD-1) and in other subsets of CD4 T cells in untreated hyperthyroid patients with Graves' disease after treatment with methimazole (MMI).

Design And Patients: The study included 18 untreated hyperthyroid patients with Graves' disease and 18 age-matched controls. Before and after 12-week treatment with MMI, we used flow cytometry to measure circulating PD-1  D4 and PD-1 CD8+ T cells and subsets of CD4 T cells in peripheral blood, as well as serum levels of chemokines related to T-helper type 1 (Th-1) and Th-2 cells.

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Extracellular administration of side-chain oxysterols, such as 24S-hydroxycholesterol (24S-HC), 27-hydroxycholesterol (27-HC) and 25-hydroxycholesterol (25-HC) to cells suppresses HMG-CoA reductase (Hmgcr) and CTP:phosphoethanolamine cytidylyltransferase (Pcyt2) mRNA levels. Oxysterols are enzymatically produced in cells from cholesterol by cytochrome P450 46A1 (Cyp46A1), Cyp27A1, Cyp3A11 and cholesterol 25-hydroxylase (Ch25h). We analyzed which of these oxysterol-producing enzymes are expressed in NIH3T3 cells and found that only Cyp46A1 was expressed.

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Article Synopsis
  • A 38-year-old woman developed severe hypothyroidism after radioactive iodine treatment for Graves' disease, continuing to have high TSH levels despite being on a high dose of levothyroxine (L-T4).
  • During hospitalization, it was discovered that she had lactose intolerance, which was likely hindering her absorption of the L-T4 tablets.
  • After switching her medication from L-T4 tablets to a powder formulation at the same dose, her thyroid hormone levels normalized, illustrating the impact of absorption issues on her treatment.
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Article Synopsis
  • Pancytopenia, a condition of low blood cell counts, can be caused by malnutrition after gastric bypass and is rare after sleeve gastrectomy.
  • A 35-year-old patient developed severe macrocytic anemia, leukopenia, and thrombocytopenia one year post-sleeve gastrectomy due to insufficient nutrient intake.
  • Tests revealed decreased haptoglobin, indicating hemolysis, and the presence of IgM and IgG antibodies against parvovirus B19, suggesting that this viral infection may have contributed to the patient's worsening anemia after surgery.
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Background/aim: We generated a novel disease mouse model in which a fructose-containing western diet (FD) induces development of non-alcoholic steatohepatitis (NASH).

Materials And Methods: C57BL/6J mice were fed FD for 60 weeks and body weight and blood pressure were monitored. Plasma cholesterol level was measured at the end of the experiments.

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Aim: To investigate acute effects of add-on therapy with the sodium glucose co-transporter 2 inhibitor tofogliflozin to dipeptidyl peptidase (DPP)-4 inhibitors on 24-hours glucose profile and glycaemic variability evaluated by continuous glucose monitoring (CGM) in patients with type 2 diabetes.

Patients And Methods: We studied 17 patients with type 2 diabetes who were hospitalised for glycaemic control. CGM was performed for 7 consecutive days in the last week of hospitalization.

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A better baseline renal function is associated with a better response to sodium-glucose co-transporter-2 inhibitors in patients with type 2 diabetes. Low serum adiponectin is associated with visceral fat accumulation and hepatic steatosis. We investigated the relationship between baseline serum adiponectin and glycemic response to dapagliflozin in patients with type 2 diabetes and non-alcoholic fatty liver disease (NAFLD).

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Article Synopsis
  • Chromosome 22q11.2 deletion syndrome is a genetic disorder causing various health issues, including hypocalcemia, congenital hypoparathyroidism, and an increased risk of autoimmune diseases.
  • A 33-year-old Japanese woman was diagnosed with this syndrome and developed Graves' disease, characterized by hyperthyroidism, necessitating a total thyroidectomy after experiencing complications from methimazole treatment.
  • Flowcytometry analysis indicated a decrease in specific immune cell subsets following surgery, suggesting a potential link between these cells and autoimmunity in patients with this genetic syndrome.
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Article Synopsis
  • The study aimed to explore the connection between serum soluble dipeptidyl peptidase-4 (sDDP-4) levels and liver fibrosis in type 2 diabetes patients by using liver stiffness measurements (LSM) and FAST scores through transient elastography.
  • In the cross-sectional analysis of 115 type 2 diabetes patients, significant results showed that higher serum sDPP-4 levels were linked with elevated liver enzymes, CAP, LSM, and FAST scores, indicating more severe liver fibrosis.
  • Ultimately, the findings suggest that increased serum sDDP-4 is closely associated with liver fibrosis severity and is significantly higher in patients with LSM indicative of probable cirrhosis, highlighting a potential biomarker for liver
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Background: It is interesting to modify sugar metabolic pathways to improve the productivity of biocatalysts that convert sugars to value-added products. However, this attempt often fails due to the tight control of the sugar metabolic pathways. Recently, activation of the Entner-Doudoroff (ED) pathway in Escherichia coli has been shown to enhance glucose consumption, though the mechanism underlying this phenomenon is poorly understood.

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Article Synopsis
  • Empagliflozin, an SGLT2 inhibitor, is shown to increase serum HDL-cholesterol levels and campesterol as a marker of cholesterol absorption in patients with type 2 diabetes.
  • In a study with 51 participants, those taking empagliflozin experienced significant increases in HDL-c and campesterol after 12 weeks, while standard therapy did not yield similar changes.
  • The findings suggest that empagliflozin may affect cholesterol metabolism by enhancing cholesterol absorption, particularly in patients not taking statins, as indicated by a decrease in lathosterol levels.
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Autosomal dominant hypoparathyroidism, deafness, and renal dysplasia (HDR) syndrome are typically diagnosed by manifestations of the three features with a positive family history. Our case carried a de novo variant in causative gene, but presenting no renal dysplasia or family history. The phenotypic heterogeneity raises a caution for diagnosis.

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