Publications by authors named "Toshinari Suzuki"

The case was an 80-year-old Japanese man. He was diagnosed with right renal cell carcinoma when he was 74. After laparoscopic radical nephrectomy, the patient received interferon, sorafenib, axitinib, and nivolumab therapy.

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Hydroxycarbodenafil, an analogue of carbodenafil, was detected in a dietary supplement in China in 2020. However, previous reports have not identified some carbon signals from the piperazine ring in nuclear magnetic resonance (NMR) experiments. Because the compound contains an amide bond, the reaction was suggested to be characteristic of compounds with rotational isomers.

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Article Synopsis
  • This study evaluated the synthetic cannabinoids NPB-22, Adamantyl-THPINACA, and CUMYL-4CN-B7AICA for their activities at cannabinoid receptors (CB1 and CB2) and their effects when inhaled, similar to smoking.
  • Using binding assays and inhalation exposure tests on mice, the researchers measured the potency and biological effects of the cannabinoids, identifying the thermal degradation of their components when combusted.
  • The results indicated that while NPB-22 and Adamantyl-THPINACA had similar CB activity in lab tests, NPB-22 exhibited weaker biological effects in inhalation tests due to thermal degradation, resulting in byproducts that lacked cannabinoid activity.
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A 42-year-old Japanese woman with end-stage renal failure due to hypertension presented with a systolic blood pressure of 160-200 mmHg despite treatment with 4 different antihypertensive agents. The plasma aldosterone concentration (PAC) and plasma renin activity (PRA) were elevated. Adrenal vein sampling suggested bilateral excessive aldosterone secretion, whereas adrenocortical scintigraphy showed right-dominant accumulation.

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Objectives: Oral beclomethasone dipropionate (BDP) is known for its use as a therapeutic medicine for gastrointestinal graft-versus-host disease (GI-GVHD). Despite growing demand for oral BDP formulation, no commercial forms have yet been marketed. Therefore, at the Tokyo Metropolitan Cancer and Infectious Disease Centre Komagome Hospital, pharmacists prepare oral liquid forms of BDP for patients with upper GI-GVHD.

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Purpose: Methylphenidate analogs appeared on the drug market during the last years. Its analogs contain two chiral centers and, thus, have potential varying configurations (i.e.

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The novel and numerous psychoactive compounds derived from the analgesic prescription drug N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide (fentanyl) have been illegally abused as recreational drugs and caused numerous fatalities. Because some psychoactive/psychotropic drugs are known to be hepatotoxic in humans and experimental animals, the cytotoxic effects and mechanisms of 4-fluoroisobutyrylfentanyl (4F-iBF), 4-chloroisobutyrylfentanyl (4Cl-iBF), and the parent compound isobutyrylfentanyl (iBF) were studied in freshly isolated rat hepatocytes. 4F-iBF caused not only concentration (0-2.

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Sexual enhancement products adulterated with phosphodiesterase 5 inhibitors (PDE-5i) pose a serious public health concern. Tadalafil and its analogues (Tds) are PDE-5i frequently detected as adulterants. In this study, a Td detector tube for the rapid detection of Tds was developed based on the color change reaction between sulfuric acid and Tds.

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Article Synopsis
  • New synthetic opioids, particularly fentanyl analogues like 4-fluoro-isobutyrylfentanyl (4F-iBF), present a significant public health risk due to their potential for abuse and toxicity to the liver and kidneys.
  • In studies with rats, 4F-iBF caused severe damage to the liver and kidneys, while the similar drug 4-chloro-isobutyrylfentanyl (4Cl-iBF) resulted in milder renal damage; pretreatment with a MOR antagonist helped mitigate the injuries.
  • The research also examined how these fentanyl analogues are metabolized over time, revealing that 4F-iBF persists in the bloodstream longer than its analogues, indicating potential for
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Background: Ectopic adrenocorticotropic hormone (ACTH)-secreting neuroendocrine tumors are rare diseases. Patients with ACTH-secreting pancreatic neuroendocrine carcinomas have a poor prognosis. Infections and coagulopathies have been reported as the cause of death.

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Topical Medicine No. 37-① is one of the in-pharmacy formulation that specifies a confirmation test (referred hereafter as the conventional method) to identify its ingredient diphenhydramine (DH) by colorimetric test. However, the conventional method is environmentally unfriendly due to the large amount of sample and organic solvent used, and the extraction process is complicated.

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The patient is a 28-year-old Japanese man diagnosed with severe congenital hyperinsulinemic-hypoglycemia six months after birth. Clinical records revealed no imaging evidence of pancreatic tumor at the time of diagnosis. Subsequently, he had developmental disorders and epilepsy caused by recurrent hypoglycemic attacks.

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Active pharmaceutical ingredients (APIs) have become a public concern owing to their possible adverse effects on aquatic organisms. Ministry of Health, Labor and Welfare in Japan (MHLW) issued "Guidance on the Environmental Risk Assessment (ERA) in new pharmaceutical development" in 2016. To evaluate the validity of phase 1 in the MHLW's ERA guidance, we monitored the measured environmental concentrations (MECs) of approved APIs in urban rivers and sewage treatment plants (STPs) in Japan and compared these MECs with the predicted environmental concentration (PEC).

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Background: Fulminant type 1 diabetes mellitus (FT1DM) is a subtype of type 1 diabetes mellitus characterized by an abrupt onset and a rapid and complete functional loss of islet β cells. It is a very rare disease generally associated with ketoacidosis and the absence of circulating pancreatic islet-related autoantibodies. Diabetic ketoacidosis with normal blood glucose levels has been reported during sodium-glucose co-transporter 2 (SGLT2) inhibitor therapy.

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BACKGROUND Hypoglycemia is a frequent complication observed in diabetic patients under treatment. This metabolic complication is associated with an increased mortality rate in diabetic patients. The use of sensor-augmented pump therapy with predictive low glucose management systems has improved blood glucose level control and reduced the incidence of hypoglycemic attacks.

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A compound with potent inhibitory activity for phosphodiesterase type 5 (PDE5) was identified as an illegal adulteration in a libido-boosting dietary supplement being sold at a store in Tokyo. This compound was identified as 5,6-diethyl-2-{5-[(4-methylpiperazin-1-yl)sulphonyl]-2-propoxyphenyl}pyrimidin-4(3)-one using liquid chromatography-diode array detector (LC-DAD), liquid chromatography-tandem mass spectrometer (LC-MS), LC-HRMS, nuclear magnetic resonance (NMR), and X-ray crystallography. The IC value of the inhibitory activity for PDE5A1 (one of the PDE5 isoforms) was 2.

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Purpose: The aim of this study was to evaluate the effects of hydroxyethyl starch (HES) 130/0.4/9 compared to 5% albumin on renal and coagulation safety profiles, volume efficacy and glycocalyx degradation in major abdominal surgery.

Methods: The study was approved by the institutional ethics committee as a single center, open-labeled randomized trial.

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Background: Few published studies are reported for the neurobehavioral toxicity of combined exposure to fungicides in mammals. This study was aimed to re-evaluate the reproductive and neurobehavioral effects of maternal exposure to combined imazalil (IMZ) and thiabendazole (TBZ) with fixed-dose of TBZ in mice.

Methods: IMZ/TBZ were given in the diet to provide levels of 0%/0% (control), 0.

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Histopathological information about spontaneous lesions in aged Hannover Wistar rats is limited. In this study, we describe spontaneous lesions found in 39 male RccHan:WIST rats used as a control in a carcinogenicity study. Neoplastic lesions were frequently seen in the endocrine system, such as pituitary adenomas in the pars distalis.

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Background: Few published studies are reported for neurobehavioral toxicity of combined exposure to fungicides in mammals. This study was aimed to evaluate reproductive and neurobehavioral effects of maternal exposure to combined fungicides in mice.

Methods: Imazalil (IMZ) and thiabendazole (TBZ) were given in the diet to provide levels of 0/0% (control), 0.

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Thioxanthone and its analogues, 2- or 4-isopropylthioxanthone, 2-chlorothioxanthone, 2,4-diethylthioxanthone (DETX) and xanthone, are used as photoinitiators of ultraviolet (UV) light-initiated curable inks. As these photoinitiators were found in numerous food/beverage products packaged in cartons printed with UV-cured inks, the cytotoxic effects and mechanisms of these compounds were studied in freshly isolated rat hepatocytes. The toxicity of DETX was greater than that of other compounds.

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Previous studies reported that piperonyl butoxide (PBO) induces adverse effects on exploratory behaviour in male mice. However, no consistent effects of PBO treatment were observed in female mice. This study aimed to evaluate PBO's neurobehavioral effects in female mice.

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Nail tips are nail art materials that can be attached to the nail with adhesives. Recently, nail/finger injuries related to nail tips have been reported and one of the causes is considered to be the adhesives used for attaching nail tips. The components of nail adhesives are mostly cyanoacrylate, which is also used as an industrial instant adhesive.

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A 47-year-old woman with diabetes treated with high-dose insulin was admitted to Mie University Hospital, Tsu, Japan, for screening of secondary diabetes mellitus and obesity. Laboratory tests and imaging studies were consistent with Cushing's disease (CD). The patient underwent trans-sphenoidal pituitary surgery.

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The present study comparatively examined carcinogenicity of 7 different multi-wall carbon nanotubes (MWCNTs) with different physicochemical characteristics. Physicochemical characteristics of MWCNTs (referred to as M-, N-, WL-, SD1-, WS-, SD2- and T-CNTs in the present study) were determined using scanning electron and light microscopes and a collision type inductively coupled plasma mass spectrometer. Male Fischer 344 rats (10 weeks old, 15 animals per group) were administered MWCNTs at a single intraperitoneal dose of 1 mg/kg body weight, and sacrificed up to 52 weeks after the commencement.

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