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1.
IEEE Trans Vis Comput Graph ; 30(5): 2276-2286, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38466596

RESUMO

RedirectedDoors is a visuo-haptic door-opening redirection technique in VR, and it has shown promise in its ability to efficiently compress the physical space required for a room-scale VR experience. However, its previous implementation has only supported laboratory experiments with a single door opening at a fixed location. To significantly expand this technique for room-scale VR, we have developed RedirectedDoors+, a robot-based system that permits consecutive door-opening redirection with haptics. Specifically, our system is mainly achieved with the use of three components: (1) door robots, a small number of wheeled robots equipped with a doorknob-like prop, (2) a robot-positioning algorithm that arbitrarily positions the door robots to provide the user with just-in-time haptic feedback during door opening, and (3) a user-steering algorithm that determines the redirection gain for every instance of door opening to keep the user away from the boundary of the play area. Results of simulated VR exploration in six virtual environments reveal our system's performance relative to user walking speed, paths, and number of door robots, from which we derive its usage guidelines. We then conduct a user study ($N=12$) in which participants experience a walkthrough application using the actual system. The results demonstrate that the system is able to provide haptic feedback while redirecting the user within a limited play area.

2.
J Obstet Gynaecol Res ; 39(1): 375-7, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22844999

RESUMO

Ovarian pregnancy very rarely occurs and its exact mechanism is unclear. Here, we report a case of ovarian pregnancy resulting from cryopreserved blastocyst transfer. The patient was a 34-year-old woman who had undergone bilateral ovarian cystectomy for endometriosis. Both fallopian tubes indicated normal findings on laparoscopic surgery, and we removed the gestational product of the right ovary. Pathological analysis confirmed the diagnosis of right ovarian pregnancy. Ectopic pregnancy is one of the major complications of in vitro fertilization-embryo transfer. Although ovarian pregnancy is an extremely rare occurrence, the possibility of developing this event after cryopreserved blastocyst transfer should be recognized.


Assuntos
Transferência Embrionária/efeitos adversos , Doenças Ovarianas/etiologia , Ovário/cirurgia , Gravidez Ectópica/etiologia , Adulto , Criopreservação , Tubas Uterinas/patologia , Tubas Uterinas/cirurgia , Feminino , Fertilização in vitro/efeitos adversos , Humanos , Doenças Ovarianas/patologia , Doenças Ovarianas/cirurgia , Ovário/patologia , Gravidez , Gravidez Ectópica/patologia , Gravidez Ectópica/cirurgia
3.
J Reprod Med ; 58(11-12): 491-6, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24568043

RESUMO

OBJECTIVE: To assess whether the insulin receptor (INSR) gene contributes to genetic susceptibility to polycystic ovary syndrome (PCOS) in a Japanese population. STUDY DESIGN: We ex-amined the frequency of the His 1058 C/T single nucleotide polymorphism (SNP) found in exon 17 of the INSR gene in 61 Japanese PCOS patients and 99 Japanese healthy controls. In addition, we analyzed the association between the genotype of this SNP and the clinical phenotypes. RESULTS: The frequency of the C/C genotype was not significantly different between all PCOS patients (47.5%) and controls (35.4%). However, among the lean cases (body mass index < or = 20 kg/m2) the frequency of the C/C genotype was significantly increased (p < 0.05) in PCOS patients (65.0%) as compared with controls (36.6%). CONCLUSION: We concluded that the His 1058 C/T polymorphism at the tyrosine kinase domain of the INSR gene had a relationship to the pathogenesis of lean PCOS patients in a Japanese population.


Assuntos
Predisposição Genética para Doença/genética , Síndrome do Ovário Policístico/genética , Polimorfismo de Nucleotídeo Único/genética , Proteínas Tirosina Quinases , Receptor de Insulina/genética , Magreza/genética , Adulto , Povo Asiático/genética , Índice de Massa Corporal , Éxons/genética , Feminino , Frequência do Gene , Genótipo , Histidina/genética , Humanos , Resistência à Insulina , Japão , Obesidade/epidemiologia , Magreza/epidemiologia
4.
Artigo em Inglês | MEDLINE | ID: mdl-37639419

RESUMO

We examine the effect of auditory cues occurring in reality on redirection. Specifically, we set two hypotheses: the auditory cues emanating from fixed positions in reality (Fixed sound, FS) increase the noticeability of redirection, while the auditory cues whose positions are manipulated consistently with the visual manipulation (Redirected sound, RDS) decrease the noticeability of redirection. To verify these hypotheses, we implemented an experimental environment that virtually reproduced FS and RDS conditions using binaural recording, and then we conducted a user study ( N=18) to investigate the detection thresholds (DTs) for rotational manipulation and the sound localization accuracy of the auditory cues under FS and RDS, as well as the baseline condition without auditory cues (No sound, NS). The results show, against the hypotheses, FS gave a wider range of DTs than NS, while RDS gave a similar range of DTs to NS. Combining these results with those of sound localization accuracy reveals that, rather than the auditory cues affecting the participants' spatial perception in VR, the visual manipulation made their sound localization less accurate, which would be a reason for the increased range of DTs under FS. Furthermore, we conducted a follow-up user study ( N=11) to measure the sound localization accuracy of FS where the auditory cues were actually placed in a real setting, and we found that the accuracy tended to be similar to that of virtually reproduced FS, suggesting the validity of the auditory cues used in this study. Given these findings, we also discuss potential applications.

5.
Front Chem ; 9: 799851, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34957052

RESUMO

The occurrence of hydrogen atom-ordered form of ice Ih, ice XI, in the outer Solar System has been discussed based on laboratory experiments because its ferroelectricity influences the physical processes in the outer Solar System. However, the formation of ice XI in that region is still unknown due to a lack of formation conditions at temperatures higher than 72 K and the effect of UV-rays on the phase transition from ice I to ice XI. As a result, we observed the UV-irradiation process on ice Ih and ice Ic using a newly developed ultra-high vacuum cryogenic transmission electron microscope. We found that ice Ih transformed to ice XI at temperatures between 75 and 140 K with a relatively small UV dose. Although ice Ic partially transformed to ice XI at 83 K, the rate of transformation was slower than for ice Ih. These findings point to the formation of ice XI at temperatures greater than 72 K via UV irradiation of ice I crystals in the Solar System; icy grains and the surfaces of icy satellites in the Jovian and Saturnian regions.

6.
Int J Gynecol Cancer ; 20(6): 1063-6, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20683418

RESUMO

OBJECTIVES: The adenocarcinoma of the uterine cervix tends to arise in women of childbearing age. Conservative treatment by conization is an alternative to a hysterectomy that allows future pregnancy; however, much less is known about the management of adenocarcinoma because of its rarity and relatively short time frame of follow-up. The purpose of this study was to determine the long-term outcome of patients treated by conization alone. METHODS: All patients diagnosed to have FIGO (International Federation of Gynecology and Obstetrics) stage IA1 cervical adenocarcinoma between 1990 and 2004 with more than 5 years' follow-up at 2 institutions were reviewed. Information was abstracted on clinical data including margin status of conization and recurrence. RESULTS: Twenty-seven patients were identified, and 10 patients who expressed a strong desire to preserve fertility were offered a conization and careful surveillance without hysterectomy. The median age was 35 years, and 40% were nulliparous. All tumors were endocervical-type adenocarcinoma, and all tumors were grade 1. None had lymphovascular space invasion. Two patients had a repeated conization because of a positive margin. No recurrence was observed during an average follow-up of 75 months. CONCLUSIONS: Although further studies on the management of microinvasive cervical adenocarcinoma are desirable, conization seems to be acceptable treatment modality for patients with stage IA1 cervical adenocarcinoma who desire to preserve their fertility. A careful and long-term follow-up is needed because of lack of sufficient evidence for the safety of this treatment.


Assuntos
Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Conização/métodos , Recidiva Local de Neoplasia/patologia , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/cirurgia , Adulto , Biópsia por Agulha , Estudos de Coortes , Conização/efeitos adversos , Feminino , Seguimentos , Humanos , Histerectomia/métodos , Imuno-Histoquímica , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Recidiva Local de Neoplasia/cirurgia , Estadiamento de Neoplasias , Gravidez , Taxa de Gravidez , Reoperação , Estudos Retrospectivos , Medição de Risco , Fatores de Tempo , Resultado do Tratamento
7.
J Obstet Gynaecol Res ; 36(3): 555-9, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20598037

RESUMO

AIM: This study was undertaken to assess whether radical hysterectomy and pelvic lymphadenectomy could be carried out within acceptable complications in uterine cervical cancer patients. MATERIAL & METHODS: One hundred and forty-six patients of the International Federation of Gynecology and Obstetrics stage IB, IIA and IIB cervical cancer treated by radical hysterectomy or combined with postoperative radiation therapy were enrolled in this study. The study population was 41 women over the age of 60 and 105 women under the age of 59. Complications after the treatment of all patients were examined. RESULTS: The complications were significantly high with the patients over the age of 60 (53.7%) in comparison with the patients under the age of 59 (24.8%). Especially, the cases combined with radiation therapy had higher complication rate. The most commonly recorded complications were lymphedema (13.7%) and small bowel obstruction (8.2%). CONCLUSION: We conclude that the complications influenced on the quality of life were more frequent in patients over the age of 60.


Assuntos
Carcinoma de Células Escamosas/cirurgia , Histerectomia/efeitos adversos , Obstrução Intestinal/etiologia , Linfedema/etiologia , Neoplasias do Colo do Útero/cirurgia , Fatores Etários , Idoso , Carcinoma de Células Escamosas/radioterapia , Terapia Combinada , Feminino , Humanos , Pessoa de Meia-Idade , Resultado do Tratamento , Neoplasias do Colo do Útero/radioterapia
8.
J Assist Reprod Genet ; 27(6): 293-7, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20333463

RESUMO

PURPOSE: AZFc deletions are associated with variable testicular histology ranging from the Sertoli cell only to spermatogenic arrest and hypospermatogenesis. Such variable phenotypes may be explained by progressive germ cell regression over time. Increased apoptosis is likely responsible for progressive regression of spermatogenic potential. This study evaluated germ cell apoptosis as a cause of the progressive decrease in the number of germ cells in patients with AZFc deletions. METHODS: This study evaluated germ cell apoptosis in patients with AZFc deletions. A total of 151 patients who were diagnosed with either severe oligozoospermia or non-obstructive azoospermia were screened for Y chromosome microdeletions. Germ cell apoptosis was examined using terminal deoxy-nucleotidyl transferase-mediated digoxigenin-dUTP nick-end labeling (TUNEL) on formalin-fixed 5-microm sections of testicular specimens. RESULTS: Seven out of 117 (6.0%) patients with azoospermia and 4 of 34 (11.8%) patients with severe oligozoospermia had Y chromosome microdeletions. The percentage of apoptotic germ cells in the testes of patients with AZFc deletions were significantly increased compared to those of patients without AZFc deletions. CONCLUSIONS: These results suggest that increased apoptosis of germ cells is responsible for the progressive decline of spermatogenic potential in patients with AZFc deletions.


Assuntos
Apoptose/genética , Azoospermia/genética , Cromossomos Humanos Y , Oligospermia/genética , Deleção de Sequência , Espermatozoides/citologia , Humanos , Masculino , Testículo/patologia
9.
J Obstet Gynaecol Res ; 35(5): 1000-3, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20149057

RESUMO

Rosai-Dorfman disease (RDD) is a rare condition of unknown etiology, and female genital tract involvement in RDD is uncommon. We describe the first case of RDD with bilateral ovarian involvement in a patient implanted with a ventriculoperitoneal (VP) shunt. The patient was a 17-year-old Japanese woman who had undergone radiotherapy, surgery for extranodal RDD involving the brain, and VP shunt insertion at age 12. Bilateral pelvic masses were incidentally detected on a computed tomography scan. She underwent laparotomy for lesion extirpation. On abdominal washing cytology, histiocytes showing emperipolesis were identified. Bilateral salpingo-oophorectomy was performed instead of extirpation, as it was difficult to identify the lesion margins. At 24 months after surgery, the patient is well and has not developed local recurrence. Thus, RDD can recur because of implantation of lesion cells into the abdominal cavity through a VP shunt, as is observed in the case of cerebral neoplasms.


Assuntos
Histiócitos/patologia , Histiocitose Sinusal/patologia , Neoplasias Ovarianas/patologia , Ovário/patologia , Adolescente , Feminino , Histiocitose Sinusal/cirurgia , Humanos , Neoplasias Ovarianas/cirurgia , Ovário/cirurgia , Resultado do Tratamento , Derivação Ventriculoperitoneal
10.
Gynecol Oncol ; 109(1): 49-52, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18289649

RESUMO

OBJECTIVE: The incidence of glandular neoplasms of the uterine cervix has been steadily increasing over the past 2 decades. These lesions tend to arise in women of childbearing age. Few reports have described the treatment of glandular neoplasms of the cervix in gravid women. This report describes the preliminary results of treating stage IA1 cervical adenocarcinoma by cervical conization during pregnancy. METHODS: All patients diagnosed to have FIGO stage IA1 cervical adenocarcinoma between 1990 and 2006 were reviewed and patients diagnosed during pregnancy were identified. Information was abstracted on the clinical data including the presence or absence of disease at the margins of conization, pregnancy outcome, and the follow-up. RESULTS: Sixteen patients with stage IA1 cervical adenocarcinoma were identified. Four out of the 16 patients were diagnosed during pregnancy. Four women ages 29-37 underwent KTP LASER conization and vaporization at 16 to 23 weeks' gestation. The histology showed that all of the tumors were endocervical type adenocarcinoma. None had lymph-vascular space invasion. All of these patients expressed a strong desire to continue their pregnancy. Two patients had positive conization margins for invasive cancer and underwent a second conization at 20 weeks' gestation and 5 weeks after delivery, respectively. No residual disease was identified in the second conization specimens. All patients delivered at term. One patient was treated with cervical conization alone and 3 patients were treated with an extended radical hysterectomy with pelvic lymph nodes dissection after delivery. No patient had residual invasive cancer in a subsequent surgical specimen. None of the patients had developed recurrent disease after a 2-13-year follow-up. CONCLUSION: These preliminary data suggest that patients with FIGO stage IA1 cervical adenocarcinoma may be treated conservatively by cervical conization during pregnancy. Although a hysterectomy should be considered at the completion of childbearing, fertility sparing postpartum management could be an option for selected patients.


Assuntos
Adenocarcinoma/cirurgia , Complicações Neoplásicas na Gravidez/cirurgia , Neoplasias do Colo do Útero/cirurgia , Adenocarcinoma/patologia , Adulto , Conização/métodos , Feminino , Seguimentos , Humanos , Terapia a Laser/métodos , Estadiamento de Neoplasias , Gravidez , Complicações Neoplásicas na Gravidez/patologia , Resultado da Gravidez , Estudos Retrospectivos , Neoplasias do Colo do Útero/patologia
11.
Chem Commun (Camb) ; (34): 3586-8, 2007 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-18080552

RESUMO

An asymmetric S(N)Ar reaction was performed by using molecular chirality generated and amplified by the spontaneous crystallization of achiral naphthamides; the chirality was retained in a cold solution, caused by slow racemization, and was transferred to stable axially chiral materials with high enantiomeric excesses.

12.
CEN Case Rep ; 6(1): 22-28, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28509121

RESUMO

A 54-year-old man diagnosed with type 2 diabetes and hyperthyroidism was prescribed propylthiouracil (PTU) after the patient developed hepatic dysfunction on thiamazole. At 50 mg/day of PTU, he was stable with thyroid-stimulating hormone receptor and thyrotropic antibody titers remaining stable. After four years of taking PTU, he was referred to the Department of Nephrology due to a rapid increase in his serum creatinine (Cr) level. He showed impaired renal function (Cr 2.26 mg/dL; estimated glomerular filtration rate (eGFR), 25 mL/min). In addition, urinary ß2-microglobulin (ß2 MG) was increased to 71,980 µg/L and was positive for myeloperoxidase (MPO)-anti-neutrophil cytoplasmic antibody (ANCA) (33.9 U/mL). Gallium scintigraphy demonstrated a remarkable accumulation in both kidneys. The patient was diagnosed with tubulointerstitial nephritis based on a renal biopsy, the results of which suggested that it might have been induced by PTU. He was treated with prednisolone (PSL) at 30 mg/day. As a result, within two weeks, Cr, eGFR, and urinary ß2 MG levels were progressively improved to 1.72 mg/dL, 34 mL/min, and 22,020 µg/L, respectively. Therefore, we tapered off the PSL with a dose of 5 mg/day after approximately one year. There have been no exacerbated renal function parameters. Although there are many reports on patients developing MPO-ANCA-positive crescentic glomerulonephritis after the administration of PTU, we report on a relatively rare case in which interstitial nephritis occurred after the administration of PTU.

13.
Eur J Obstet Gynecol Reprod Biol ; 126(2): 201-5, 2006 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-16337728

RESUMO

OBJECTIVE: To evaluate prospectively the prognostic factors for ovulatory responses following clomiphene citrate (CC) administration in polycystic ovary syndrome (PCOS). STUDY DESIGN: Fifty-nine infertile patients with a diagnosis of PCOS were recruited. Ovulation was induced using 100 mg/day CC administered daily from days 5 to 9 of the cycle. Endocrine and metabolic parameters between responder and non-responder groups were analyzed. RESULTS: For a 75-g fasting glucose load (75-g OGTT), blood glucose levels at 60 and 120 min, the area under the curve (AUC) and blood insulin levels at 120 min in the non-responder group (n=25) were significantly higher than those in the responder group (n=34), although the measurements of fasting blood glucose and insulin were not significantly different between the two groups. In the receiver operating characteristic curves, the most appropriate cutoff point was 120 mg/dl for the blood glucose level at 120 min and 9000 for the blood glucose x insulin level at 120 min. There were no significant differences in the clinical characteristics or in the endocrine and metabolic parameters between conceived (n=9) and non-conceived groups (n=21). CONCLUSION: The levels of blood glucose and blood glucose x insulin at 120 min after 75-g OGTT could be good biochemical markers of CC resistance in PCOS. No predictors of conception following CC therapy were identified by this study.


Assuntos
Clomifeno/farmacologia , Fármacos para a Fertilidade Feminina/farmacologia , Ovulação/efeitos dos fármacos , Síndrome do Ovário Policístico/sangue , Administração Oral , Adulto , Área Sob a Curva , Glicemia , Clomifeno/administração & dosagem , Feminino , Fármacos para a Fertilidade Feminina/administração & dosagem , Humanos , Insulina/sangue , Indução da Ovulação , Valor Preditivo dos Testes , Estudos Prospectivos , Curva ROC
14.
Gan To Kagaku Ryoho ; 32(2): 201-5, 2005 Feb.
Artigo em Japonês | MEDLINE | ID: mdl-15751633

RESUMO

Although surgery is treatment of choice for esophageal cancer, radiochemotherapy is being employed throughout Japan for the purpose of improving patient QOL. The results of this therapy are reported to be comparable to those associated with surgical treatment. However, since concomitant 5-FU/CDDP radiotherapy, currently the treatment of choice when implementing radiochemotherapy, is associated with a comparatively high incidence of gastrointestinal disorders and requires continuous intravenous infusion for 24 hours, it lowers the level of patient QOL. We have proposed a clinical study of concomitant TS-1/CDGP radiotherapy for the purpose of maintaining patient QOL and improving outcome. We conducted a pilot study prior to the phase I and II studies. The study was conducted on six cases and favorable results were obtained, consisting of a CR rate of 66.7% and a two-year survival rate of 50%. Although bone marrow inhibition was observed as an adverse side effect, gastrointestinal disorders that were discernible to the patients were extremely mild, and patient QOL was able to be maintained. CR was observed in 2 cases who were positive for DPD as determined by immunostaining. We are planning on conducting phase I and II studies in the future based on the potential for this treatment to contribute to the preservation of patient QOL and improve prognosis.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/radioterapia , Qualidade de Vida , Terapia Combinada , Esquema de Medicação , Combinação de Medicamentos , Neoplasias Esofágicas/mortalidade , Neoplasias Esofágicas/psicologia , Feminino , Humanos , Masculino , Compostos Organoplatínicos/administração & dosagem , Ácido Oxônico/administração & dosagem , Projetos Piloto , Piridinas/administração & dosagem , Taxa de Sobrevida , Tegafur/administração & dosagem
15.
Artigo em Japonês | MEDLINE | ID: mdl-26016640

RESUMO

SUMMARY: A 39-year-old woman was diagnosed with Systemic lupus erthymatosus (SLE) in 1993, and initially received 30 mg of prednisolone (PSL) daily as treatment. In 2012, the patient was diagnosed with pregnancy-induced hypertension (PIH) complecated with proteinurea, hypertension and pretibial edema at 24 weeks of gestation. At onset, protein urea was 1.6 g/day and she was given bed rest in the hospital with a protein-restricted and low salt diet, which led to a decrease in protein urea to approximately 1 g/day. At 34 weeks of gestation epigastric pain developed, and laboratory examinations showed liver dysfunction and low platelets. We made a diagnosis of hemolysis, elevated liver enzymes, low platelet (HELLP) syndrome and performed an emergency cesarean procedure. Thereafter blood pressure was elevated, protein urea was 3.2 g/daily, anti-ds-DNA antibody level was elevated and serum C3/C4/CH50 was reduced, thus we gave. plasma exchange therapy, along with immunoadsorption and steroid pulse therapy (methyl-prednisolone 500 mg/daily for 3 days), as well as PSL at 30 mg/day. Overtime clinical symptoms and laboratory data gradually improved. CONCLUSION: Some reports suggest that SLE during pregnancy is a risk factor for hypertension, nephritis, SLE relapse and HELLP syndrome. In the patient, ADAMTS13 activity did not decrease, while there was an increase in VW factor level. We assessed this case was as atypical thrombotic microangiopathy. And herein report HELLP syndrome during pregnancy associated with SLE in our patient.


Assuntos
Síndrome Antifosfolipídica/complicações , Fatores Biológicos/sangue , Síndrome HELLP/diagnóstico , Síndrome HELLP/etiologia , Lúpus Eritematoso Sistêmico/complicações , Complicações na Gravidez , Fator de von Willebrand/análise , Proteínas ADAM , Proteína ADAMTS13 , Adulto , Cesárea , Progressão da Doença , Emergências , Feminino , Humanos , Gravidez , Microangiopatias Trombóticas/diagnóstico , Microangiopatias Trombóticas/etiologia
16.
Thyroid ; 14(3): 231-5, 2004 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15072706

RESUMO

Aplastic anemia is a rare but severe complication of methimazole (MMI) treatment for Graves' disease. We present a case of a 53-year-old Japanese female who had been treated with 30 mg/d of MMI for 30 days for Graves' disease and was subsequently admitted to the Japan Self Defense Forces (JSDF) Central Hospital with a mild sore throat and high-grade fever that began the previous day. The patient had a reduced white blood cell count (WBC) count of 0.9 x 10(3) per microliter with severe granulocytopenia and increased lymphocytes, a platelet count of 49 x 10(3) per microliter, and hemoglobin of 10.6 g/dL. Bone marrow (BM) aspirates showed hypocellular bone marrow with plasmacytosis. Because of poor recovery of her peripheral blood values after withdrawal of MMI, she was given transfusions of platelets and erythrocytes thereafter. This is the second report of plasmacytosis in bone marrow of MMI-induced aplastic anemia, and suggests that immunogenic mechanisms may cause this rare complication.


Assuntos
Anemia Aplástica/induzido quimicamente , Anemia Aplástica/patologia , Antitireóideos/efeitos adversos , Medula Óssea/efeitos dos fármacos , Medula Óssea/patologia , Metimazol/efeitos adversos , Plasmócitos/patologia , Anemia Aplástica/terapia , Antitireóideos/administração & dosagem , Antitireóideos/uso terapêutico , Esquema de Medicação , Transfusão de Eritrócitos , Feminino , Doença de Graves/tratamento farmacológico , Humanos , Metimazol/administração & dosagem , Metimazol/uso terapêutico , Pessoa de Meia-Idade , Transfusão de Plaquetas
17.
J Reprod Med ; 48(9): 707-12, 2003 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-14562636

RESUMO

OBJECTIVE: To evaluate the effect of sairei-to, an herbal medicine, as an antioxidant in oligozoospermia and asthenozoospermia (nonnormozoospermia). STUDY DESIGN: Forty-seven nonnormozoospermic and 16 normozoospermic men were the subjects of this prospective clinical study. After sairei-to (9.0 g/d) was administered daily to the 2 groups for 3 months, sperm parameters, serum hormones and superoxide dismutase (SOD) activity in the serum and the seminal plasma was analyzed. The testicular artery was also assessed. RESULTS: After therapy, serum hormones and SOD activity did not change significantly in either group. Although men with normozoospermia did not undergo a significant change in sperm conditions or testicular artery flow, total sperm concentration (17.1 +/- 20.0 versus 28.7 +/- 35.5 x 10(6)/mL, P = .02) and sperm motility (30.1% +/- 21.6 versus 45.8% +/- 24.4, P < .0001) were significantly increased, and the pulsatility index of the testicular artery (2.03 +/- 0.84 versus 1.64 +/- 0.48, P = .04) was significantly decreased in nonnormozoospermia. CONCLUSION: Treatment with the herbal antioxidant sairei-to improves sperm condition and testicular artery flow in nonnormozoospermia.


Assuntos
Antioxidantes/uso terapêutico , Medicamentos de Ervas Chinesas/uso terapêutico , Infertilidade Masculina/tratamento farmacológico , Artérias , Velocidade do Fluxo Sanguíneo , Hormônios/sangue , Humanos , Infertilidade Masculina/fisiopatologia , Masculino , Oligospermia/tratamento farmacológico , Estudos Prospectivos , Fluxo Pulsátil , Sêmen/enzimologia , Contagem de Espermatozoides , Motilidade dos Espermatozoides , Superóxido Dismutase/análise , Superóxido Dismutase/sangue , Testículo/irrigação sanguínea , Resistência Vascular
18.
J Reprod Med ; 48(6): 455-9, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12856518

RESUMO

OBJECTIVE: To analyze retrospectively the frequency, long-term prognosis and pregnancy rate in infertile women diagnosed with endometrial hyperplasia or carcinoma by endometrial biopsy. STUDY DESIGN: From 1989 to 2000, endometrial biopsies were performed on 2,573 patients to investigate the cause of infertility. The main outcome measures were frequency, long-term prognosis and pregnancy rate for patients with each type of endometrial abnormality. RESULTS: Twenty-four patients (0.93%) were diagnosed with an endometrial abnormality. Of them, 10 were diagnosed with simple hyperplasia, 7 with complex hyperplasia, 3 with complex hyperplasia with atypia and 4 with endometrial carcinoma. All 4 patients (0.16%) with endometrial carcinoma were infertile as a result of complications arising from polycystic ovary syndrome. Two of them underwent hysterectomies. High-dose medroxyprogesterone acetate therapy combined with assisted reproductive technology resulted in pregnancy in 1 of the 2 patients with endometrial carcinoma. CONCLUSION: Of infertile women, 0.93% have endometrial abnormalities, and those with polycystic ovary syndrome have a high risk of endometrial carcinoma. Assisted reproductive technology combined with high-dose medroxyprogesterone acetate may be effective means of overcoming infertility, allowing women with endometrial carcinoma to readily achieve pregnancy.


Assuntos
Carcinoma/complicações , Hiperplasia Endometrial/complicações , Neoplasias do Endométrio/complicações , Infertilidade Feminina/etiologia , Infertilidade Feminina/patologia , Taxa de Gravidez , Adulto , Hiperplasia Endometrial/cirurgia , Feminino , Humanos , Histerectomia , Acetato de Medroxiprogesterona/uso terapêutico , Gravidez , Congêneres da Progesterona/uso terapêutico , Prognóstico , Técnicas de Reprodução Assistida , Estudos Retrospectivos
19.
Reprod Med Biol ; 3(1): 19-26, 2004 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32351315

RESUMO

Background and Aims: The aim of the present prospective observational study was to evaluate the effects of low-dose, short-term metformin, in combination with clomiphene (CC), in CC-resistant infertile Japanese women with polycystic ovary syndrome (PCOS). Methods: Metformin therapy was administered orally (one 250 mg tablet, twice daily) to 15 CC-resistant infertile patients with PCOS, beginning on the third day of progestin-induced withdrawal bleeding, and was continued for 14 days in the first cycle. In the event of anovulation, 100 mg/day of CC was given during subsequent cycles on days 5-9, in addition to the aforementioned dose of metformin. Hormonal and metabolic parameters were measured on the second or third days of the first cycle and also the fourth cycle, following an overnight fast. Results: None of the 15 women successfully ovulated during the first cycle with metformin treatment alone. After two subsequent cycles with the combination of CC and metformin, ovulation was confirmed in 17 of 29 cycles (61%) and in 13 of 15 patients (87%). Two women became pregnant within 2 months of therapy (13%). There were no cases of ovarian hyperstimulation syndrome. Following three cycles of metformin therapy, a slight reduction in serum levels of luteinizing hormone (LH), free testosterone, androstenedione, dehydroepiandrosterone sulfate, hemoglobin A1c and total cholesterol was seen, while serum LH/follicle-stimulating hormone ratio and serum level of low-density lipoprotein cholesterol were significantly decreased. Although there were no significant differences between the responder (n = 11) and non-responder (n = 2) groups at baseline, the levels of plasma fasting insulin was significantly higher and fasting glucose/insulin ratio was significantly lower in the non-responder group compared with the responder group after three cycles. Conclusion: Low-dose, short-term metformin, combined with CC, can improve ovulation rates in CC-resistant infertile Japanese women with PCOS. (Reprod Med Biol 2004; 3: 19-26).

20.
J Nippon Med Sch ; 81(1): 28-34, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24614392

RESUMO

AIM: The objective of this multicenter phase II study was to evaluate the effects of biweekly paclitaxel and carboplatin combination chemotherapy on response rate and toxicities in patients with epithelial ovarian cancer. PATIENTS AND METHODS: Patients with International Federation of Gynecology and Obstetrics stage II to IV ovarian cancer received paclitaxel at a dose of 120 mg/m(2) and carboplatin at an area under the curve of 3 mg/mL per minute every 2 weeks for 8 or more cycles. Inclusion criteria included an Eastern Cooperative Oncology Group performance status of 0 to 2 and no previous chemotherapy. Informed consent was obtained from each patient before the start of treatment. RESULTS: From March 2003 through July 2009, 42 patients from 5 institutions were eligible to be evaluated for response and toxicity. The median age was 60.5 years (age range, 34-81 years). The International Federation of Gynecology and Obstetrics stage was stage II in 3 patients, stage III in 31 patients, and stage IV in 8 patients. The response rate was 66.7% (95% confidence interval: 50.5%-80.4%). Sixty-nine percent (29 of 42) of patients received 8 or more cycles of chemotherapy. The median progression-free survival was 18.5 months, and overall survival was 59.1 months. The most common grade 3 or 4 hematological toxicity was neutropenia (61.0%). No patients had grade 3 or 4 thrombocytopenia. The most common grade 3 nonhematological toxicities were neuropathy (4.9%) and nausea (2.4%). CONCLUSION: Paclitaxel combined with carboplatin using a biweekly schedule is a safe and effective chemotherapy regimen for patients with epithelial ovarian cancer. Our results suggest that a biweekly schedule is well tolerated and is less toxic than a triweekly schedule.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias Epiteliais e Glandulares/tratamento farmacológico , Neoplasias Ovarianas/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/administração & dosagem , Antineoplásicos Fitogênicos/administração & dosagem , Carboplatina/administração & dosagem , Carcinoma Epitelial do Ovário , Esquema de Medicação , Feminino , Humanos , Pessoa de Meia-Idade , Paclitaxel/administração & dosagem , Resultado do Tratamento
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