1.The Effects of a Red-Light Controllable Nitric Oxide Donor, NORD-1, on Erectile Dysfunction in Rats with Streptozotocin Induced Diabetes Mellitus
Yuji HOTTA ; Kyoya OYAMA ; Takuma YOSHIDA ; Naoya IEDA ; Taiki MORI ; Yasuhiro HORITA ; Tomoya KATAOKA ; Yoko FURUKAWA-HIBI ; Susumu OHYA ; Hidehiko NAKAGAWA ; Kazunori KIMURA
The World Journal of Men's Health 2025;43(1):197-204
Purpose:
Patients with diabetes mellitus (DM) often exhibit refractory erectile dysfunction (ED). Red-light-controllable nitric oxide donor (NORD-1) and red-light irradiation have successfully enhanced erectile function in intact rats. In this study, we investigated whether the combination of NORD-1 and red-light irradiation effectively treated ED in streptozotocin (STZ)-treated rats with DM.
Materials and Methods:
Seven-week-old male Sprague-Dawley rats were used in this study. Rats in the DM and sham groups received intravenous STZ (50 mg/kg) and saline, respectively. One week after treatment, the blood glucose level of rats in the DM group was >250 mg/dL. Five weeks after the treatment, we performed a functional study by measuring intracavernous pressure (ICP) under cavernous nerve stimulation before and after NORD-1 treatment with and without light irradiation. Additionally, we performed an isometric tension study using the corpus cavernosum of rats treated with NORD-1 or the control compound, SiR650.
Results:
The ICP/mean arterial pressure (MAP) ratio was significantly lower in the DM group than in the sham group before and after NORD-1 treatment without light irradiation (both p<0.05). After NORD-1 treatment with light irradiation, the ICP/MAP ratio in the sham and DM groups was significantly enhanced than before and after NORD-1 treatment without light irradiation (all p<0.05). The ICP/MAP ratio in the DM group after NORD-1 with light irradiation was similar to that in the sham group under normal conditions before NORD-1 treatment. Moreover, the systemic blood pressure was not affected by NORD-1 or light irradiation. In the tension study, the corpus cavernosum of rats treated with SiR650 was not changed by red light in the sham or DM groups. However, the rats treated with NORD-1 were strongly relaxed by red light in both groups.
Conclusions
NORD-1 and red-light irradiation could improve ED in the presence of DM without lowering blood pressure.
2.The Effects of a Red-Light Controllable Nitric Oxide Donor, NORD-1, on Erectile Dysfunction in Rats with Streptozotocin Induced Diabetes Mellitus
Yuji HOTTA ; Kyoya OYAMA ; Takuma YOSHIDA ; Naoya IEDA ; Taiki MORI ; Yasuhiro HORITA ; Tomoya KATAOKA ; Yoko FURUKAWA-HIBI ; Susumu OHYA ; Hidehiko NAKAGAWA ; Kazunori KIMURA
The World Journal of Men's Health 2025;43(1):197-204
Purpose:
Patients with diabetes mellitus (DM) often exhibit refractory erectile dysfunction (ED). Red-light-controllable nitric oxide donor (NORD-1) and red-light irradiation have successfully enhanced erectile function in intact rats. In this study, we investigated whether the combination of NORD-1 and red-light irradiation effectively treated ED in streptozotocin (STZ)-treated rats with DM.
Materials and Methods:
Seven-week-old male Sprague-Dawley rats were used in this study. Rats in the DM and sham groups received intravenous STZ (50 mg/kg) and saline, respectively. One week after treatment, the blood glucose level of rats in the DM group was >250 mg/dL. Five weeks after the treatment, we performed a functional study by measuring intracavernous pressure (ICP) under cavernous nerve stimulation before and after NORD-1 treatment with and without light irradiation. Additionally, we performed an isometric tension study using the corpus cavernosum of rats treated with NORD-1 or the control compound, SiR650.
Results:
The ICP/mean arterial pressure (MAP) ratio was significantly lower in the DM group than in the sham group before and after NORD-1 treatment without light irradiation (both p<0.05). After NORD-1 treatment with light irradiation, the ICP/MAP ratio in the sham and DM groups was significantly enhanced than before and after NORD-1 treatment without light irradiation (all p<0.05). The ICP/MAP ratio in the DM group after NORD-1 with light irradiation was similar to that in the sham group under normal conditions before NORD-1 treatment. Moreover, the systemic blood pressure was not affected by NORD-1 or light irradiation. In the tension study, the corpus cavernosum of rats treated with SiR650 was not changed by red light in the sham or DM groups. However, the rats treated with NORD-1 were strongly relaxed by red light in both groups.
Conclusions
NORD-1 and red-light irradiation could improve ED in the presence of DM without lowering blood pressure.
3.The Effects of a Red-Light Controllable Nitric Oxide Donor, NORD-1, on Erectile Dysfunction in Rats with Streptozotocin Induced Diabetes Mellitus
Yuji HOTTA ; Kyoya OYAMA ; Takuma YOSHIDA ; Naoya IEDA ; Taiki MORI ; Yasuhiro HORITA ; Tomoya KATAOKA ; Yoko FURUKAWA-HIBI ; Susumu OHYA ; Hidehiko NAKAGAWA ; Kazunori KIMURA
The World Journal of Men's Health 2025;43(1):197-204
Purpose:
Patients with diabetes mellitus (DM) often exhibit refractory erectile dysfunction (ED). Red-light-controllable nitric oxide donor (NORD-1) and red-light irradiation have successfully enhanced erectile function in intact rats. In this study, we investigated whether the combination of NORD-1 and red-light irradiation effectively treated ED in streptozotocin (STZ)-treated rats with DM.
Materials and Methods:
Seven-week-old male Sprague-Dawley rats were used in this study. Rats in the DM and sham groups received intravenous STZ (50 mg/kg) and saline, respectively. One week after treatment, the blood glucose level of rats in the DM group was >250 mg/dL. Five weeks after the treatment, we performed a functional study by measuring intracavernous pressure (ICP) under cavernous nerve stimulation before and after NORD-1 treatment with and without light irradiation. Additionally, we performed an isometric tension study using the corpus cavernosum of rats treated with NORD-1 or the control compound, SiR650.
Results:
The ICP/mean arterial pressure (MAP) ratio was significantly lower in the DM group than in the sham group before and after NORD-1 treatment without light irradiation (both p<0.05). After NORD-1 treatment with light irradiation, the ICP/MAP ratio in the sham and DM groups was significantly enhanced than before and after NORD-1 treatment without light irradiation (all p<0.05). The ICP/MAP ratio in the DM group after NORD-1 with light irradiation was similar to that in the sham group under normal conditions before NORD-1 treatment. Moreover, the systemic blood pressure was not affected by NORD-1 or light irradiation. In the tension study, the corpus cavernosum of rats treated with SiR650 was not changed by red light in the sham or DM groups. However, the rats treated with NORD-1 were strongly relaxed by red light in both groups.
Conclusions
NORD-1 and red-light irradiation could improve ED in the presence of DM without lowering blood pressure.
4.A Systematic Review and Meta-Analysis of Systemic Corticosteroids for the Palliation of Dyspnea in Patients with Cancer
Kozue SUZUKI ; Hideki KATAYAMA ; Hiroyuki KOHARA ; Yoshinobu MATSUDA ; Sho GOYA ; Jun KAKO ; Yoko KASAHARA ; Masanori MORI ; Takeo NAKAYAMA ; Hiroaki WATANABE ; Takashi YAMAGUCHI
Palliative Care Research 2025;20(2):95-102
Objective: Almost half of all patients with cancer experience dyspnea, which can have various causes. Although systemic corticosteroids are administered to relieve symptoms, their efficacy has not been established. This systematic review aims to determine the efficacy of systemic corticosteroids for dyspnea in patients with cancer. Methods: CENTRAL, MEDLINE, EMBASE, and Ichushi-Web databases were searched for articles published from their inception to September 23, 2019, on studies of systemic corticosteroid administration for dyspnea in patients with cancer. The primary outcome measure was dyspnea intensity, as assessed by patient-reported outcomes. Secondary outcome measures were quality of life, delirium, and severe adverse events. Results: Two RCTs were included in the meta-analysis. With regard to alleviating dyspnea, the systematic corticosteroid group was associated with significantly greater dyspnea relief than the placebo group (mean difference: −0.71 [95% CI: −1.4 to −0.03]). However, a meta-analysis of quality of life and delirium could not be performed due to insufficient data. Analysis of severe adverse events showed no significant difference in their incidence between the corticosteroid and control groups (relative rate: 0.96 [95% CI: 0.19-4.93]). Conclusions: Systemic corticosteroids may be effective in treating dyspnea in patients with cancer, particularly those with lung involvement. Limiting the conditions for which corticosteroids are approved is expected to promote their appropriate use and minimize their adverse effects. However, further investigation is needed to determine the appropriate dosage, and the conditions in which corticosteroids are effective.
5.The Effects of a Red-Light Controllable Nitric Oxide Donor, NORD-1, on Erectile Dysfunction in Rats with Streptozotocin Induced Diabetes Mellitus
Yuji HOTTA ; Kyoya OYAMA ; Takuma YOSHIDA ; Naoya IEDA ; Taiki MORI ; Yasuhiro HORITA ; Tomoya KATAOKA ; Yoko FURUKAWA-HIBI ; Susumu OHYA ; Hidehiko NAKAGAWA ; Kazunori KIMURA
The World Journal of Men's Health 2025;43(1):197-204
Purpose:
Patients with diabetes mellitus (DM) often exhibit refractory erectile dysfunction (ED). Red-light-controllable nitric oxide donor (NORD-1) and red-light irradiation have successfully enhanced erectile function in intact rats. In this study, we investigated whether the combination of NORD-1 and red-light irradiation effectively treated ED in streptozotocin (STZ)-treated rats with DM.
Materials and Methods:
Seven-week-old male Sprague-Dawley rats were used in this study. Rats in the DM and sham groups received intravenous STZ (50 mg/kg) and saline, respectively. One week after treatment, the blood glucose level of rats in the DM group was >250 mg/dL. Five weeks after the treatment, we performed a functional study by measuring intracavernous pressure (ICP) under cavernous nerve stimulation before and after NORD-1 treatment with and without light irradiation. Additionally, we performed an isometric tension study using the corpus cavernosum of rats treated with NORD-1 or the control compound, SiR650.
Results:
The ICP/mean arterial pressure (MAP) ratio was significantly lower in the DM group than in the sham group before and after NORD-1 treatment without light irradiation (both p<0.05). After NORD-1 treatment with light irradiation, the ICP/MAP ratio in the sham and DM groups was significantly enhanced than before and after NORD-1 treatment without light irradiation (all p<0.05). The ICP/MAP ratio in the DM group after NORD-1 with light irradiation was similar to that in the sham group under normal conditions before NORD-1 treatment. Moreover, the systemic blood pressure was not affected by NORD-1 or light irradiation. In the tension study, the corpus cavernosum of rats treated with SiR650 was not changed by red light in the sham or DM groups. However, the rats treated with NORD-1 were strongly relaxed by red light in both groups.
Conclusions
NORD-1 and red-light irradiation could improve ED in the presence of DM without lowering blood pressure.
6.The Effects of a Red-Light Controllable Nitric Oxide Donor, NORD-1, on Erectile Dysfunction in Rats with Streptozotocin Induced Diabetes Mellitus
Yuji HOTTA ; Kyoya OYAMA ; Takuma YOSHIDA ; Naoya IEDA ; Taiki MORI ; Yasuhiro HORITA ; Tomoya KATAOKA ; Yoko FURUKAWA-HIBI ; Susumu OHYA ; Hidehiko NAKAGAWA ; Kazunori KIMURA
The World Journal of Men's Health 2025;43(1):197-204
Purpose:
Patients with diabetes mellitus (DM) often exhibit refractory erectile dysfunction (ED). Red-light-controllable nitric oxide donor (NORD-1) and red-light irradiation have successfully enhanced erectile function in intact rats. In this study, we investigated whether the combination of NORD-1 and red-light irradiation effectively treated ED in streptozotocin (STZ)-treated rats with DM.
Materials and Methods:
Seven-week-old male Sprague-Dawley rats were used in this study. Rats in the DM and sham groups received intravenous STZ (50 mg/kg) and saline, respectively. One week after treatment, the blood glucose level of rats in the DM group was >250 mg/dL. Five weeks after the treatment, we performed a functional study by measuring intracavernous pressure (ICP) under cavernous nerve stimulation before and after NORD-1 treatment with and without light irradiation. Additionally, we performed an isometric tension study using the corpus cavernosum of rats treated with NORD-1 or the control compound, SiR650.
Results:
The ICP/mean arterial pressure (MAP) ratio was significantly lower in the DM group than in the sham group before and after NORD-1 treatment without light irradiation (both p<0.05). After NORD-1 treatment with light irradiation, the ICP/MAP ratio in the sham and DM groups was significantly enhanced than before and after NORD-1 treatment without light irradiation (all p<0.05). The ICP/MAP ratio in the DM group after NORD-1 with light irradiation was similar to that in the sham group under normal conditions before NORD-1 treatment. Moreover, the systemic blood pressure was not affected by NORD-1 or light irradiation. In the tension study, the corpus cavernosum of rats treated with SiR650 was not changed by red light in the sham or DM groups. However, the rats treated with NORD-1 were strongly relaxed by red light in both groups.
Conclusions
NORD-1 and red-light irradiation could improve ED in the presence of DM without lowering blood pressure.
7.The Effect of High-flow Nasal Cannula Oxygen for Dyspnea in Patients with Advanced Disease: Systematic Review
Sho GOYA ; Yasushi NAKANO ; Hiroaki TSUKUURA ; Yusuke TAKAGI ; Hiroaki WATANABE ; Yoshinobu MATSUDA ; Jun KAKO ; Yoko KASAHARA ; Hiroyuki KOHARA ; Masanori MORI ; Takeo NAKAYAMA ; Takashi YAMAGUCHI
Palliative Care Research 2023;18(4):261-269
Objective: To evaluate the efficacy of high-flow nasal cannula oxygen (HFNC) for dyspnea in patients with advanced disease. Methods: A literature search was conducted using MEDLINE, Cochrane Library, EMBASE, and Ichu-shi Web. Inclusion criteria were: 1) randomized controlled trials evaluating the effect of HFNC on dyspnea; 2) aged 18 years or older with advanced disease with hypoxemia; 3) control group was conventional oxygen therapy or noninvasive positive pressure ventilation. Exclusion criteria were: 1) patients in intensive care unit, 2) weaning from ventilator. Results: Six studies (4 from database searches, and 2 from hand searches) were included. In the 2 studies evaluating short-term intervention, one showed HFNC was more efficacious, and the other conventional oxygen was more efficacious. In the 2 studies evaluating long-term interventions: one showed HFNC was more efficacious, and the other showed no significant difference. In the 2 studies evaluating the intervention during exercise, one showed HFNC was more efficacious, and the other showed no significant difference. Conclusion: HFNC may be effective for dyspnea in patients with advanced disease associated with hypoxemia.
8.The Effect of Fan Therapy for Dyspnea in Patients with Chronic Progressive Disease: Systematic Review and Meta-analysis
Jun KAKO ; Yoichi NAKAMURA ; Tomohiro NISHI ; Yusuke TAKAGI ; Yoshinobu MATSUDA ; Hiroaki WATANABE ; Yoko KASAHARA ; Sho GOYA ; Hiroyuki KOHARA ; Masanori MORI ; Takashi YAMAGUCHI
Palliative Care Research 2022;17(1):33-42
Objective: To evaluate the efficacy of fan therapy for the relief of dyspnea in patients with chronic progressive disease. Methods: A systematic electronic database search of all available articles published before October 23, 2019 was conducted using Ichushi-Web of the Japan Medical Abstract Society databases, CENTRAL, EMBASE, and MEDLINE. In addition, a hand-search for updates was performed using PubMed on June 30, 2020 and December 7, 2021. The inclusion criteria were: 1) any RCTs comparing the effect of fan therapy with any other intervention, and 2) patients aged ≥18 years. Exclusion criteria were: 1) duplicate references, and 2) conference presentations. Results: We identified 110 studies, of which 10 met our criteria for inclusion. Finally, five studies were used in the meta-analysis. Fan therapy significantly improved dyspnea in patients with chronic progressive disease compared to control groups with a standardized mean difference of −1.43 (95% confidence interval: −2.70 to −0.17, I2=94%, p<0.0001). Conclusion: Fan therapy was found to be effective in reducing dyspnea in chronic progressive disease.
9.A Case of Nasu-Hakola Disease without Fractures or Consanguinity Diagnosed Using Exome Sequencing and Treated with Sodium Valproate.
Kiyohiro YAMAZAKI ; Yuta YOSHINO ; Yoko MORI ; Shinichiro OCHI ; Taku YOSHIDA ; Takashi ISHIMARU ; Shu Ichi UENO
Clinical Psychopharmacology and Neuroscience 2015;13(3):324-326
Nasu-Hakola disease (NHD) is a rare autosomal recessive neuropsychiatric disorder characterized by bone cysts, fractures, and cognitive impairment. Two genes are responsible for the development of NHD; TYROBP and TREM2. Although it presents with typical signs and symptoms, diagnosing this disease remains difficult. This case report describes a male with NHD with no family or past history of bone fractures who was diagnosed using exome sequencing. His frontal lobe psychiatric symptoms recovered partially following treatment with sodium valproate, but not with an antipsychotic.
Bone Cysts
;
Consanguinity*
;
Exome*
;
Fractures, Bone
;
Frontal Lobe
;
Humans
;
Male
;
Sodium*
;
Valproic Acid*
10.Difficulties in daily life of post thoracic esophagectomy cancer patients after hospital discharge
Shigeaki Watanuki ; Keiko Iino ; Yurie Koyama ; Miho Kurihara ; Chisato Ichikawa ; Kyoko Okada ; Hideo Uesugi ; Chie Asanuma ; Hiroyuki Daiko ; Takeo Fujita ; Kyoko Suzuki ; Chihoko Wada ; Michiko Mori ; Yoko Hisabe ; Kaori Yagasaki ; Hiroko Komatsu
Palliative Care Research 2014;9(2):128-135
Purpose: This study aimed at identifying difficulties among post thoracic esophagectomy cancer patients during outpatient follow-up. Methods: Patients who had radical esophagectomy at a cancer center hospital in Japan were prospectively observed and were interviewed by a certified nurse assigned at esophageal surgical outpatient division. Their responses were documented in medical records and were analyzed by content analysis method. This study was approved by the study hospital's research ethics committee. Results: The data from 66 patients were obtained. Content analysis yielded 221 extracts, 25 categories, and 65 codes of difficulties, including: concerns or signs/symptoms associated with dietary intake, physical activity, and anxiety. Implications: The majority of post-thoracoabdominal esophagectomy patients experienced multiple dysfunctions and symptoms after discharge. The results underscore the significance of nurses' role in assessing and instructing patients to address these issues.


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