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1.
Hum Reprod ; 31(9): 2051-60, 2016 09.
Article in English | MEDLINE | ID: mdl-27301362

ABSTRACT

STUDY QUESTION: What are the effects of fertility education on knowledge, childbearing desires and anxiety? SUMMARY ANSWER: Providing fertility information contributed to greater knowledge, but increased anxiety. WHAT IS KNOWN ALREADY: Past studies have found that exposure to educational material improved fertility awareness and changed desires toward childbearing and its timing. Existing educational websites with evidence-based medical information provided in a non-judgmental manner have received favorable responses from reproductive-aged men and women. STUDY DESIGN, SIZE, DURATION: This three-armed (one intervention and two control groups), randomized controlled trial was conducted using online social research panels (SRPs) in Japan in January 2015. PARTICIPANTS/MATERIALS, SETTING, METHODS: A total of 1455 participants (726 men and 729 women) between 20 and 39 years of age who hoped to have (more) children in the future were block-randomized and exposed to one of three information brochures: fertility education (intervention group), intake of folic acid during pregnancy (control group 1) or governmental financial support for pregnancy and childbirth (control group 2). Fertility knowledge was measured with the Japanese version of the Cardiff Fertility Knowledge Scale (CFKS-J). Knowledge, child-number and child-timing desires, subjective anxiety (i.e. whether participants felt anxiety [primary outcome]), and scores on the State-Trait Anxiety Inventory were assessed immediately after exposure. Non-inferiority comparisons were performed on subjective anxiety with non-inferiority declared if the upper limit of the two-sided 95% confidence interval (CI) for risk difference did not exceed a margin of 0.15. This test for non-inferiority was only performed for subjective anxiety; all the other variables were tests of superiority. MAIN RESULTS AND THE ROLE OF CHANCE: Posttest scores on the CFKS-J (mean, SD) were higher in the intervention group than that of the control groups: intervention versus Control 1 and versus Control 2: 52.8 (28.8) versus 40.9 (26.2) (P< 0.001) versus 45.1 (27.1) (P = 0.003) among men and 64.6 (26.0) versus 50.8 (26.9) (P< 0.001) versus 53.0 (26.4) (P< 0.001) among women.The percentage of participants who felt subjective anxiety after exposure to the intervention brochure was significantly higher than that of the control groups: intervention versus Control 1 and versus Control 2: 32.6 versus 17.8% (risk difference [RD] = 0.149, 95% CI: 0.073-0.225) versus 14.5% (RD = 0.182, 95% CI: 0.108-0.256) among men, and 50.2 versus 26.3% (RD = 0.239, 95% CI: 0.155-0.322) versus 14.0% (RD = 0.362, 95% CI: 0.286-0.439) among women. Non-inferiority of the intervention was inconclusive (i.e. the CI included 0.15) among men whereas inferiority was declared among women. The incidence of anxiety was higher in the intervention group than that of the control groups especially among men aged 30 and older and among women aged 25 and older. No difference existed in childbearing desires between groups after exposure. LIMITATIONS, REASONS FOR CAUTION: The possibility of selection bias associated with the use of SRPs (higher socioeconomic status and education) and volunteer bias toward those more interested in fertility may limit the generalizability of these findings. WIDER IMPLICATIONS OF THE FINDINGS: In addition to education targeting a younger generation, psychological approaches are needed to alleviate possible anxiety caused by fertility information. STUDY FUNDING/COMPETING INTERESTS: This study was funded by National Center for Child Health and Development, Seiiku Medical Study Grant (24-6), the Daiwa Foundation Small Grants and Grant-in-Aid for JSPS Fellows (26-1591). No competing interest declared. TRIAL REGISTRATION NUMBER: UMIN Clinical Trials Registry. Trial registration number, 000016168. TRIAL REGISTRATION DATE: 13 January 2015. DATE OF FIRST PATIENT'S ENROLMENT: 15 January 2015.


Subject(s)
Emotions , Family Planning Services , Fertility , Health Education , Health Knowledge, Attitudes, Practice , Anxiety/psychology , Female , Humans , Japan , Male , Young Adult
2.
Eur J Neurol ; 20(6): 921-7, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23398285

ABSTRACT

BACKGROUND AND PURPOSE: Although stroke patients with diabetes mellitus have a poor prognosis, the prognostic factors of patients with diabetes mellitus have not been adequately studied. The aim of this study was to determine the predisposing factors for outcome 1 year after stroke in diabetic patients. METHODS: Patients' characteristics, findings on admission and outcome 1 year after first ischaemic stroke were prospectively investigated in 452 consecutive patients with diabetes mellitus (305 males, 147 females; 69 ±â€…10 years old). A poor outcome was defined as a modified Rankin Scale (mRS) score ≥ 2, 1 year after stroke onset. RESULTS: There were 286 patients with a good outcome (mRS score ≤ 1) and 166 with a poor outcome (mRS score ≥ 2). On multivariate logistic regression analysis, age [odds ratio (OR) 1.06, 95% confidence interval (CI) 1.03-1.10, P < 0.001, per 1-year increase], National Institutes of Health Stroke Scale (NIHSS) score on admission (OR 1.21, 95% CI 1.11-1.32, P < 0.001, per 1-point increase), diabetic nephropathy (OR 1.93, 95% CI 1.02-3.65, P = 0.044) and hemoglobin A1c (HbA1c; OR 1.27, 95% CI 1.07-1.51, P = 0.007, per 1% increase) were independently related to poor outcome (mRS score ≥ 2) 1 year after the onset of the first stroke in diabetic patients. CONCLUSIONS: In stroke patients with diabetes mellitus, age, NIHSS score on admission, diabetic nephropathy and HbA1c were independently associated with a poor outcome 1 year after the first ischaemic stroke.


Subject(s)
Diabetes Mellitus/diagnosis , Diabetes Mellitus/epidemiology , Registries , Stroke/diagnosis , Stroke/epidemiology , Aged , Aged, 80 and over , Diabetes Mellitus/therapy , Female , Follow-Up Studies , Humans , Japan/epidemiology , Male , Middle Aged , Prospective Studies , Risk Factors , Stroke/therapy , Treatment Outcome
3.
J Sports Med Phys Fitness ; 52(2): 212-20, 2012 Apr.
Article in English | MEDLINE | ID: mdl-22525659

ABSTRACT

AIM: The aim of this study was to assess the effects of long-term physical exercise on peripheral nerve using both nerve conduction study (NCS) and ultrasonography (US). METHODS: The authors measured nerve conduction study and ultrasonography in 15 male (mean, 20±1.5 years) handball players and 13 male (mean, 21.3±1.9 years) control subjects. Cross-sectional area of the median nerve was evaluated using ultrasonography at the carpal tunnel and 6 cm proximal to the wrist, and the ulnar nerve at 6 cm proximal to the wrist crease, 2 cm proximal to the medial epicondyle, the epicondyle, and 2 cm distal to epicondyle. RESULTS: US shows significantly increased cross-sectional area of both median and ulnar nerve in the players compared with that in the controls, and the latency times in both nerves were significantly delayed in the players compared with that in the controls. Cross-sectional area of the median nerve showed a significant correlation with latency (r=0.330, P<0.01). CONCLUSION: This study suggests that the players have a tendency toward having both median and ulnar motor nerve damage in the wrist or elbow region although they are asymptomatic.


Subject(s)
Exercise/physiology , Median Nerve/diagnostic imaging , Median Nerve/physiology , Neural Conduction , Ulnar Nerve/diagnostic imaging , Ulnar Nerve/physiology , Adolescent , Adult , Humans , Male , Sports/physiology , Time Factors , Ultrasonography , Young Adult
4.
AJNR Am J Neuroradiol ; 43(5): 696-700, 2022 05.
Article in English | MEDLINE | ID: mdl-35450854

ABSTRACT

BACKGROUND AND PURPOSE: Noninvasive perfusion-weighted imaging with short scanning time could be advantageous in order to determine presumed penumbral regions and subsequent treatment strategy for acute ischemic stroke (AIS). Our aim was to evaluate interobserver agreement and the clinical utility of intravoxel incoherent motion MR imaging in patients with acute ischemic stroke. MATERIALS AND METHODS: We retrospectively studied 29 patients with AIS (17 men, 12 women; mean age, 75.2 [SD, 12.0 ] years; median, 77 years). Each patient underwent intravoxel incoherent motion MR imaging using a 1.5T MR imaging scanner. Diffusion-sensitizing gradients were applied sequentially in the x, y, and z directions with 6 different b-values (0, 50, 100, 150, 200, and 1000 seconds/mm2). From the intravoxel incoherent motion MR imaging data, diffusion coefficient, perfusion fraction, and pseudodiffusion coefficient maps were obtained using a 2-step fitting algorithm based on the Levenberg-Marquardt method. The presence of decreases in the intravoxel incoherent motion perfusion fraction and pseudodiffusion coefficient values compared with the contralateral normal-appearing brain was graded on a 2-point scale by 2 independent neuroradiologists. Interobserver agreement on the rating scale was evaluated using the κ statistic. Clinical characteristics of patients with a nondecreased intravoxel incoherent motion perfusion fraction and/or pseudodiffusion coefficient rated by the 2 observers were also assessed. RESULTS: Interobserver agreement was shown for the intravoxel incoherent motion perfusion fraction (κ = 0.854) and pseudodiffusion coefficient (κ = 0.789) maps, which indicated almost perfect and substantial agreement, respectively. Patients with a nondecreased intravoxel incoherent motion perfusion fraction tended to show recanalization of the occluded intracranial arteries more frequently than patients with a decreased intravoxel incoherent motion perfusion fraction. CONCLUSIONS: Intravoxel incoherent motion MR imaging could be performed in < 1 minute in addition to routine DWI. Intravoxel incoherent motion parameters noninvasively provide feasible, qualitative perfusion-related information for assessing patients with acute ischemic stroke.


Subject(s)
Ischemic Stroke , Aged , Diffusion Magnetic Resonance Imaging/methods , Female , Humans , Ischemic Stroke/diagnostic imaging , Male , Motion , Reproducibility of Results , Retrospective Studies
5.
Eur J Neurol ; 15(5): 481-6, 2008 May.
Article in English | MEDLINE | ID: mdl-18394047

ABSTRACT

BACKGROUND AND PURPOSE: Sorbin and SH3-domain-containing-1 (SORBS1) is an important adaptor protein in insulin-signalling pathway, and its genetic polymorphism may regulate the activity of insulin resistance. We investigated the association between the SORBS1 T228A polymorphism and ischaemic stroke. METHODS: Genotyping was achieved by a rapid-cycle PCR and melting curve analysis using fluorescent probes in 1049 incident cases of ischaemic stroke and 1049 age- and sex-matched control subjects recruited from the Hisayama study. RESULTS: The allele distributions of the SORBS1 T228A polymorphism were similar amongst cases and controls. The multivariate-adjusted odds ratio (OR) of the AA genotype for ischaemic stroke was 2.897 (95% CI, 0.907-8.018) compared with the TT genotype. In terms of stroke subtype, there was a trend toward a difference in the AA genotypes for lacunar infarction, compared with the TT genotype (OR = 8.740, P = 0.0510), and combined TT and TA genotypes (OR = 8.768, P = 0.0505). The other polymorphisms genotyped were not associated with any subtypes of ischaemic stroke. T228A polymorphism of SORBS1 was not associated with the prevalence of diabetes. CONCLUSIONS: The AA genotype of SORBS1 T228A polymorphism may play a role in lacunar infarction in the Japanese population.


Subject(s)
Brain Infarction/epidemiology , Brain Infarction/genetics , Genetic Predisposition to Disease , Microfilament Proteins/genetics , Polymorphism, Genetic , Aged , Brain Infarction/classification , Case-Control Studies , Cohort Studies , Female , Gene Frequency , Genotype , Humans , Japan/epidemiology , Japan/ethnology , Male , Middle Aged , Odds Ratio , Registries , Retrospective Studies , Risk , Risk Factors
6.
Eur J Neurol ; 14(10): 1091-7, 2007 Oct.
Article in English | MEDLINE | ID: mdl-17880563

ABSTRACT

The C242T polymorphism of p22phox, a component of NAD(P)H oxidase, may have an impact on cardiovascular diseases; however, the association between this polymorphism and brain infarction is not fully understood. Here, we investigate the relationship between the C242T polymorphism and brain infarction in Japan. We recruited 1055 patients with brain infarction and 1055 control subjects. A chi-squared test revealed that the T-allele frequency was lower in patients with cardioembolic infarction (5.6%) than in control subjects (11.0%, P < 0.001); however, allele frequencies in patients with lacunar and atherothrombotic infarction (11.2%) were not significantly different from those in control subjects (11.0%). A multivariate-adjusted conditional logistic regression analysis also revealed no association between CT + TT genotype, and lacunar and atherothrombotic infarction (odds ratio = 0.97, 95% confidence interval: 0.72-1.32). To investigate the functional effects of the C242T polymorphism, we examined superoxide production in COS-7 cells cotransfected with Nox4 and p22phox of each genotype. The superoxide-producing activity in those cells expressing p22phox with the T allele was not significantly different from that in cells expressing p22phox with the C allele. The present results suggest that the p22phox C242T polymorphism may have a protective effect against cardioembolic infarction, but is not related to lacunar and atherothrombotic infarction in Japan.


Subject(s)
Brain Ischemia/enzymology , Brain Ischemia/genetics , NADPH Oxidases/genetics , Polymorphism, Genetic/genetics , Registries , Stroke/enzymology , Stroke/genetics , Aged , Aged, 80 and over , Animals , Brain Ischemia/epidemiology , COS Cells , Cerebral Infarction/enzymology , Cerebral Infarction/epidemiology , Cerebral Infarction/genetics , Chlorocebus aethiops , Female , Gene Frequency/genetics , Humans , Japan/epidemiology , Male , Middle Aged , Stroke/epidemiology
7.
Bone Marrow Transplant ; 37(4): 425-31, 2006 Feb.
Article in English | MEDLINE | ID: mdl-16400344

ABSTRACT

Neoplasms of natural killer (NK)-lineage are rare. Their prognosis is generally poor except for cases of solitary nasal NK-cell lymphoma. The NK-cell Tumor Study Group performed a survey in Japan on patients diagnosed between 1994 and 1998. Of 228 patients selected for analysis, 40 underwent HSCT (15 allografts and 25 autografts). The underlying diseases were myeloid/NK cell precursor acute leukemia (n = 4), blastic NK-cell lymphoma (n = 11), aggressive NK-cell leukemia (n = 3), and nasal-type extranodal NK-cell lymphoma (n = 22). At the time of HSCT, 22 patients were in complete remission (CR), 11 were in relapse, and seven were primary refractory. All patients received myeloablative conditioning regimens including total-body irradiation. Sixteen died of disease progression, and six of treatment-related causes. Overall, 4-year survival was 39% with a median follow-up of 50 months; this was significantly better than that of patients who did not undergo HSCT (21%, P = 0.0003). For patients transplanted in CR, the 4-year overall survival was 68%, which was significantly better than that of patients who went into CR but did not undergo HSCT (P = 0.03). These findings suggest that the HSCT is a promising treatment strategy for NK-cell lineage.


Subject(s)
Hematopoietic Stem Cell Transplantation , Killer Cells, Natural/pathology , Leukemia/therapy , Lymphoma/therapy , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Disease Progression , Female , Follow-Up Studies , Humans , Infant , Infant, Newborn , Japan , Leukemia/diagnosis , Leukemia/pathology , Lymphoma/diagnosis , Lymphoma/pathology , Male , Middle Aged , Prognosis , Survival Rate , Transplantation Conditioning , Transplantation, Autologous , Transplantation, Homologous
8.
Leukemia ; 18(4): 763-70, 2004 Apr.
Article in English | MEDLINE | ID: mdl-14961041

ABSTRACT

Aggressive natural killer-cell leukemia (ANKL) is a rare form of large granular lymphocyte leukemia, which is characterized by a systemic proliferation of NK cells. The clinical features of 22 ANKL cases were analyzed. Hepatomegaly (64%), splenomegaly (55%) and lymphadenopathy (41%) were also frequently observed. Leukemic cells were identified as CD1-, CD2+, surface CD3-, CD4-, CD5-, CD7+, CD8+/-, CD10-, CD11b+/-, CD13-, CD16+, CD19-, CD20-, CD25-, CD33(-), CD34-, CD38+, CD56+, CD122+, HLA-DR+ and TCR-. Two of the 16 cases examined for CD57 were positive and three of the seven cases examined for cytoplasmic CD3. Epstein-Barr virus was detected in the tumor cells of 11 of the 13 cases examined. No common cytogenetic abnormalities were identified and 6q anomaly was detected in only one. Three of 13 patients treated with chemotherapy containing anthracycline/anthraquinone attained complete remission, in contrast to none of the eight who were treated with regimens without anthracycline. Although the overall prognosis was poor with a median survival of 58 days, those who attained remission showed better prognosis (P=0.005). These findings suggest that ANKL is an entity of mature cytotoxic NK-cell neoplasms with distinct phenotype and disease presentations. Intensive treatment for ANKL may result in a better prognosis.


Subject(s)
Killer Cells, Natural/pathology , Leukemia, Lymphoid/pathology , Adult , Aged , Aged, 80 and over , Anthracyclines/therapeutic use , Antigens, CD/analysis , Antineoplastic Agents/therapeutic use , Chromosome Aberrations , Female , Herpesvirus 4, Human , Humans , Immunophenotyping , Leukemia, Lymphoid/drug therapy , Leukemia, Lymphoid/genetics , Leukemia, Lymphoid/virology , Male , Middle Aged , Prognosis , Remission Induction , Retrospective Studies , Survival Analysis
9.
Kyobu Geka ; 58(10): 893-5, 2005 Sep.
Article in Japanese | MEDLINE | ID: mdl-16167816

ABSTRACT

Cor triatriatum is a rare congenital cardiac anomaly especially in adulthood. A 68-year-old female was diagnosed as a cor triatriatum classified to Lucas-Schmidt IA, severe degree of mitral regurgitation and atrial fibrillation. Resection of the abnormal diaphragm in the left atrium and miral valve replacement were performed. Although the reason of sudden death of this patient after discharge is unknown, surgical intervention for atrial fibrillation should have performed to prevent a thromboembolism in such cases.


Subject(s)
Cor Triatriatum/diagnosis , Aged , Atrial Fibrillation/complications , Cor Triatriatum/complications , Cor Triatriatum/surgery , Echocardiography , Female , Humans , Magnetic Resonance Imaging , Mitral Valve Insufficiency/complications , Tomography, X-Ray Computed
10.
Eur J Trauma Emerg Surg ; 41(5): 531-8, 2015 Oct.
Article in English | MEDLINE | ID: mdl-26038004

ABSTRACT

PURPOSE: Recombinant thrombomodulin (rTM) has been available in Japan since 2008, but there is concern about its association with postoperative hemorrhage. The efficacy and safety of rTM were examined in patients with disseminated intravascular coagulation (DIC) caused by a septic condition after gastrointestinal surgery. METHODS: Forty-two patients were emergently admitted to the intensive care unit after emergent gastrointestinal surgery in Kyushu University Hospital from May 2008 to April 2013. Of these patients, 22 had DIC (defined as an acute DIC score ≥ 4). All but three patients received treatment with gabexate mesylate (GM) (n = 9) or rTM (n = 10). The causes of sepsis were peritonitis with colorectal perforation, anastomotic leakage, and intestinal necrosis. Acute DIC score, sepsis-related organ failure assessment score, platelet count, and a variety of biochemical parameters were compared between rTM and GM recipients after treatment administration. RESULTS: There were no significant differences between the groups for any parameter except C-reactive protein levels. The CRP level tended to be lower in the rTM group than in the GM group. Acute DIC score in the rTM group resolved significantly earlier than that in the GM group. No patient stopped the administration of rTM because of postoperative bleeding. CONCLUSION: rTM may be an effective therapeutic drug for the treatment of septic patients with DIC following emergent gastrointestinal surgery.


Subject(s)
Anticoagulants/therapeutic use , Disseminated Intravascular Coagulation/drug therapy , Gabexate/therapeutic use , Gastrointestinal Diseases/surgery , Postoperative Complications/drug therapy , Sepsis/complications , Sepsis/drug therapy , Thrombomodulin/therapeutic use , Adult , Aged , Aged, 80 and over , Critical Care , Emergency Treatment , Female , Humans , Length of Stay , Male , Middle Aged , Peritonitis/etiology , Recombinant Proteins/therapeutic use , Retrospective Studies , Treatment Outcome , Young Adult
11.
J Cereb Blood Flow Metab ; 15(5): 845-51, 1995 Sep.
Article in English | MEDLINE | ID: mdl-7673377

ABSTRACT

We designed the present study to examine whether or not the inhibition of acetylcholinesterase modulates cerebral microcirculation in hypotension and improves brain metabolism in ischemia induced by bilateral carotid artery occlusion in hypertensive rats. Blood flow to the parietal cortex was determined by the H2 clearance method. Lactate, pyruvate, and ATP were estimated by enzymatic methods. Acetylcholinesterase inhibitor (AChEI, ENA-713), at 0.05, 0.1, or 0.5 mg/kg, was intravenously injected 10 min before either hemorrhagic hypotension or cerebral ischemia. The levels of acetylcholine in the control were 29.3 +/- 8.1 (mean +/- SD) and 39.5 +/- 8.1 pmol/mg in the cortex and hippocampus, respectively, and they were significantly decreased by 15-19% after 60 min of ischemia in the vehicle-treated rats. AChEI preserved the levels to 93-98% of the control (p < 0.05 versus vehicle). The lower limit of autoregulation was 74 +/- 9% of the resting values. The administration of AChEI helped preserve blood flow and lowered the limit to 64 +/- 6% (p < 0.05 versus control). After 60 min of ischemia, lactate increased 6.5-fold and ATP decreased to 64% of the control value. The administration of AChEI dose-dependently reduced the lactate level 1.9- to 3.9-fold and well preserved the ATP level to 94-97% of the control. The inhibition of acetylcholinesterase activity may preserve cerebral autoregulation during hypotension and protect cerebral metabolism against ischemic insult.


Subject(s)
Acetylcholinesterase/metabolism , Brain Ischemia/metabolism , Cerebrovascular Circulation/drug effects , Cholinesterase Inhibitors/pharmacology , Homeostasis/drug effects , Hypertension/metabolism , Acetylcholine/metabolism , Animals , Brain/metabolism , Brain Ischemia/complications , Hypertension/complications , Male , Rats , Rats, Inbred SHR
12.
Am J Kidney Dis ; 34(6): 1096-104, 1999 Dec.
Article in English | MEDLINE | ID: mdl-10585320

ABSTRACT

Orthostatic hypotension is a serious problem in patients with diabetes mellitus (DM) undergoing hemodialysis (HD). To evaluate cerebral circulation during orthostasis in patients with DM, we examined changes in mean blood flow velocity in the middle cerebral artery (VMCA) during 60 degrees head-up tilt for 5 minutes in patients with DM (six men, two women; age, 57 +/- 3 years [mean +/- SEM]; HD duration, 47 +/- 27 months) before and after bicarbonate HD by using transcranial Doppler sonography. The findings were compared with those in HD patients without diabetes (non-DM; 12 men, 5 women; age, 47 +/- 3 years; HD duration, 82 +/- 23 months). Mean blood pressure (MBP) in the supine position, hematocrit (Hct), plasma fibrinogen, and volume of fluid removed by HD were not significantly different between the two groups (MBP, 106 +/- 6 versus 103 +/- 4 mm Hg; Hct, 26% +/- 1% versus 28% +/- 1%; fibrinogen, 355 +/- 37 versus 357 +/- 27 mg/dL; fluid, 2.5 +/- 0.2 versus 2.3 +/- 0.2 L). Percentage of change in VMCA (% VMCA) during tilt was compared between the groups before and after HD. Before HD, MBP decreased significantly to 93 +/- 5 mm Hg during tilt only in patients with DM. The degree of MBP reduction was -13 +/- 2 mm Hg in DM and -2 +/- 2 mm Hg in non-DM patients (P < 0.01). % VMCA equally decreased during tilt; DM, -12% +/- 3%, and non-DM, -12% +/- 2%. After HD; MBP decreased by 36 +/- 7 mm Hg in patients with DM, which was significantly greater than before HD. VMCA also decreased in both groups after HD, and % VMCA in DM (-32% +/- 5%) was significantly greater than before HD (P < 0.01) and in non-DM patients (-13% +/- 2%; P < 0.01). % VMCA positively correlated with the percentage of change ratio of MBP during tilt in both groups after HD (DM, r = 0. 87, P < 0.01; non-DM, r = 0.61, P < 0.01). Our results showed a significant decrease in cerebral blood flow velocity during tilt of equal magnitude in both groups before HD despite differences in the level of hypotension, whereas reduction in cerebral blood flow velocity and decrease in MBP were more marked in DM after HD. Orthostasis could thus cause hemodynamically mediated brain damage after HD, especially in patients with DM.


Subject(s)
Blood Flow Velocity , Cerebrovascular Circulation , Diabetes Mellitus/physiopathology , Hypotension, Orthostatic/etiology , Renal Dialysis/adverse effects , Aged , Blood Pressure , Cardiac Output , Carotid Artery, Common/diagnostic imaging , Diabetes Mellitus/diagnostic imaging , Female , Humans , Hypotension, Orthostatic/physiopathology , Male , Middle Aged , Pulse , Tilt-Table Test , Ultrasonography, Doppler, Transcranial
13.
Mol Cell Endocrinol ; 128(1-2): 77-84, 1997 Apr 04.
Article in English | MEDLINE | ID: mdl-9140078

ABSTRACT

Changes in responsiveness of freshly isolated longitudinal muscle cells from rat uterus to oxytocin during gestation were investigated through measuring contractility as well as intracellular free calcium concentration. We have demonstrated the pregnant stage-dependent contraction of freshly isolated myometrial cells in response to an extracellular hormone, oxytocin, in Ca2+-containing medium. The oxytocin effect appeared to be through oxytocin receptor since the effect could be blocked by a specific oxytocin antagonist. The magnitude of the contraction of the isolated cells in response to extracellular oxytocin was in the order of 21 day >> 18 day > 15 day pregnant rat longitudinal muscle cells. In a concentration dependent manner, oxytocin elicited a rapid increase in [Ca2+]i of longitudinal muscle cells isolated from different stages of the pregnant rat uterus, especially at the term of pregnancy. The time (4-5 s) required to reach a maximum increase in [Ca2+]i of the isolated longitudinal muscle cells in response to oxytocin was the shortest among all previously reported studies. The results also indicated that the freshly prepared longitudinal muscle cells maintained their functional calcium signaling system. The order of the responsiveness of the isolated longitudinal muscle cells to oxytocin was 21 day >> 18 day > 15 day pregnant rats in terms of rate, affinity and magnitude. Oxytocin appears to transmit its signal mainly through stimulating a voltage-dependent and/or receptor operated nonselective calcium channel. However, the possibility that a part of the oxytocin action occurs through stimulating the release of calcium from intracellular store sites of longitudinal muscle still remains.


Subject(s)
Calcium/metabolism , Muscle, Smooth/physiology , Myometrium/physiology , Oxytocin/pharmacology , Pregnancy, Animal/physiology , Signal Transduction/drug effects , Uterine Contraction/drug effects , Animals , Calcium Channels/physiology , Cytosol/metabolism , Female , In Vitro Techniques , Muscle, Smooth/drug effects , Myometrium/drug effects , Pregnancy , Rats , Rats, Wistar , Ryanodine/pharmacology , Time Factors
14.
Leuk Res ; 25(10): 847-53, 2001 Oct.
Article in English | MEDLINE | ID: mdl-11532516

ABSTRACT

Adhesive ligands on acute myeloid leukemic (AML) blasts may mediate transmigration and extravascular infiltration. In this study, 30 AML samples were examined for expression and density of adhesion antigens. By univariate analysis, four patients with extravascular infiltration showed significantly higher expression of CD2, CD11a, CD11b, CD11c, CD15, CD65, CD86, and HLA-DR as compared with patients without infiltration. These four patients also showed significantly higher density of CD11a, CD11b, CD11c, CD15 and CD65 expression. By multivariate analysis, CD65 expression was the only significant independent risk factor for infiltration, suggesting that this is a critical adhesion molecule for extravascular AML infiltration.


Subject(s)
Antigens, CD/metabolism , Cell Adhesion Molecules/metabolism , E-Selectin/metabolism , Leukemia, Myeloid/pathology , Leukemic Infiltration/metabolism , Acute Disease , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Risk Factors
15.
Brain Res Mol Brain Res ; 87(1): 71-80, 2001 Feb 19.
Article in English | MEDLINE | ID: mdl-11223161

ABSTRACT

In previous studies, we showed that basic fibroblast growth factor (bFGF) reduced infarct volume when infused intravenously in animal models of focal cerebral ischemia. In the current study, we examined the potential mechanism of infarct reduction by bFGF, especially effects on apoptosis within the ischemic brain. We found that bFGF decreased DNA fragmentation in the ischemic hemisphere, as assessed by terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-biotin nick end labeling (TUNEL) histochemical methods combined with morphological criteria. bFGF also prevented reduction of immunoreactivity of the anti-apoptotic protein Bcl-2 in the ischemic hemisphere, but did not alter immunoreactivity of the pro-apoptotic proteins Bax, Caspase-1, or Caspase-3. These changes in TUNEL histochemistry and Bcl-2 immunoreactivity were especially prominent in cortex at the borders ('penumbra') of infarcts, spared by bFGF treatment. We conclude that the infarct-reducing effects of bFGF may be due, in part, to prevention of downregulation of Bcl-2 expression and decreased apoptosis in the ischemic brain.


Subject(s)
Brain Ischemia/drug therapy , DNA Fragmentation/drug effects , Fibroblast Growth Factor 2/pharmacology , Infarction, Middle Cerebral Artery/drug therapy , Proto-Oncogene Proteins c-bcl-2/biosynthesis , Animals , Apoptosis/drug effects , Brain Chemistry/drug effects , Brain Ischemia/metabolism , Caspase 1/metabolism , Caspase 3 , Caspases/metabolism , Down-Regulation/drug effects , In Situ Nick-End Labeling , Infarction, Middle Cerebral Artery/metabolism , Injections, Intravenous , Male , Neurons/chemistry , Neurons/cytology , Neurons/enzymology , Proto-Oncogene Proteins/analysis , Proto-Oncogene Proteins/metabolism , Proto-Oncogene Proteins c-bcl-2/analysis , Proto-Oncogene Proteins c-bcl-2/metabolism , Rats , Rats, Wistar , bcl-2-Associated X Protein
16.
Obstet Gynecol ; 68(2): 263-6, 1986 Aug.
Article in English | MEDLINE | ID: mdl-3737042

ABSTRACT

Three hundred seventy-four cervical or vaginal specimens from patients with various hormonal states were cultured for Ureaplasma urealyticum and Mycoplasma hominis. Significantly, low recovery rates of U urealyticum were obtained in the prepuberty (5%), puerperium (24%), and postmenopause (25%) groups, whereas pregnant women showed the highest incidence of U urealyticum (82%). The recovery rate of U urealyticum from neonates was 42%. The incidence of U urealyticum in sexually inactive females was significantly lower (40%) than that in sexually active nonpregnant women (67%). Significantly, a higher incidence (36%) was observed in postmenopausal women with a uterine cervix than in those whose cervix had been removed by surgery (10%). It is suggested that there is a close relationship between hormonal status and the occurrence of genital mycoplasmas. Possible modes of transmission of genital mycoplasmas other than sexual contact are also discussed.


Subject(s)
Genitalia, Female/microbiology , Menopause , Mycoplasma/isolation & purification , Postpartum Period , Puberty , Ureaplasma/isolation & purification , Adolescent , Adult , Aged , Child , Child, Preschool , Female , Genital Diseases, Female/microbiology , Humans , Infant, Newborn , Middle Aged , Mycoplasma Infections/epidemiology , Pregnancy , Pregnancy Complications, Infectious/epidemiology , Sexual Behavior
17.
Obstet Gynecol ; 94(1): 71-7, 1999 Jul.
Article in English | MEDLINE | ID: mdl-10389721

ABSTRACT

OBJECTIVE: To examine biologic and proliferative properties of adenomyotic lesions and to determine whether adenomyotic lesions originate in the basal layer of the eutopic endometrium. METHODS: We examined eutopic and ectopic endometria from 23 patients with adenomyosis. To obtain evidence for the induction of programmed cell death, apoptotic cells were identified using a modified terminal deoxynucleotidyltransferase-biotin nick end-labeling method. To evaluate cell death repressor activity, bcl-2 gene expression was examined using immunohistochemical staining. As a proliferative marker, Ki-67 expression was also examined immunohistochemically. RESULTS: In the eutopic endometrium, apoptosis was most frequently observed in epithelial cells during mid- to late secretory phases, although it was rarely found during early proliferative through early secretory phases (P<.01). In contrast, bcl-2 gene expression inversely correlated with the appearance of apoptosis. A similar tendency was observed in stromal cells. In the ectopic endometrium of adenomyosis, endometrial dating revealed that secretory change was rare, even in the secretory phase, and that induction of apoptotic cells as well as bcl-2 gene expression showed no cyclic change. In stromal cells of the ectopic endometrium, apoptosis was more frequent than was seen in the eutopic endometrium, in all menstrual phases (P<.05). Ki-67 was constantly expressed in the glandular epithelium of the ectopic endometrium, irrespective of the menstrual phases, whereas in the secretory phase it was less expressed in the eutopic endometrium of functional and basal layers (P<.01). CONCLUSION: The induction of apoptosis seems to be regulated by hormonal changes in the eutopic endometrium and has an inverse correlation with bcl-2 gene expression. The ectopic endometrium in adenomyosis is rarely influenced by hormonal change and has different biologic and proliferative properties than events observed in the eutopic endometrium findings, which strongly suggest that the adenomyotic lesion does not originate in the basal endometrium.


Subject(s)
Apoptosis , Endometriosis/metabolism , Endometrium/metabolism , Ki-67 Antigen/biosynthesis , Adult , Endometriosis/pathology , Endometrium/pathology , Female , Gene Expression , Humans , Menstrual Cycle/metabolism , Middle Aged , Proto-Oncogene Proteins c-bcl-2/biosynthesis
18.
Obstet Gynecol ; 98(2): 332-40, 2001 Aug.
Article in English | MEDLINE | ID: mdl-11506854

ABSTRACT

OBJECTIVE: To investigate and compare the efficacy of all-trans retinoic acid (RA) and/or interferon-alpha (IFN-alpha) on premalignant and malignant models of cervical cancer. METHODS: Cell growth rate was examined after treatment for 4, 7, and 10 days with RA and/or IFN-alpha of human papillomavirus type 18 (HPV 18)-immortalized endo- and ectocervical cells, nontransformed serum-adapted cells, transformed cells, three adenocarcinoma, and three squamous cell carcinoma cell lines. The effect on epithelial differentiation by RA and IFN-alpha was examined in organotypic culture. Induction of apoptosis was examined by modified terminal transferase-mediated deoxyuridine triphosphate-biotin nick end-labeling (TUNEL) and DNA fragmentation. RESULTS: Cell growth rate was inhibited by RA, 84-96% in HPV 18-immortalized endocervical cells, SiHa, and ME180, 0% in OMC-4, and 18-62% in other cell lines; and by IFN-alpha about 75% in SiHa and ME180 and 14-40% in the other cell lines. Combining RA and IFN-alpha increased the antiproliferative effect in premalignant cell lines and some cancer cell lines except OMC-4, SiHa, and HT-3. In rafts, RA treatment reversed human endocervical cell metaplasia and HPV 18-immortalized endo- and ectocervical cell dysplastic epithelial differentiation. Interferon-alpha, not RA, treatment of HPV 18-immortalized endo- and ectocervical cells induced apoptosis. CONCLUSION: Cell growth inhibition by treatment with RA, IFN-alpha, and their combination differentially depends on treatment type and time, cell origin, cell line, and oncogenic state. In a premalignant model of cervical carcinoma, RA reduces dysplastic differentiation and IFN-alpha induces apoptosis. These data confirm that these treatments may be effective for preventing or treating premalignant cervical lesions.


Subject(s)
Antineoplastic Agents/pharmacology , Interferon-alpha/pharmacology , Tretinoin/pharmacology , Uterine Cervical Neoplasms/pathology , Adenocarcinoma/pathology , Apoptosis/drug effects , Carcinoma, Squamous Cell/pathology , Cell Differentiation/drug effects , Cell Division/drug effects , Cell Line, Transformed , Cervix Uteri/cytology , Cervix Uteri/drug effects , Female , Humans , Papillomaviridae , Tumor Cells, Cultured/drug effects , Uterine Cervical Neoplasms/virology
19.
Obstet Gynecol ; 66(3 Suppl): 72S-75S, 1985 Sep.
Article in English | MEDLINE | ID: mdl-4022520

ABSTRACT

Pelvic endometriosis associated with massive ascites is an unusual occurrence. Only 12 cases have been reported since 1954 when Brews first described this entity. The authors present two cases recently encountered at Saga Medical School Hospital. Clinical courses and operative findings are described and other cases from the literature are reviewed. The possible etiologic mechanisms of the ascites are explored and the possibility of conservative surgery and hormonal therapy with danazol is discussed.


Subject(s)
Ascites/etiology , Endometriosis/complications , Pelvic Neoplasms/complications , Adult , Combined Modality Therapy , Danazol/therapeutic use , Endometriosis/therapy , Female , Humans , Pelvic Neoplasms/therapy
20.
Obstet Gynecol ; 82(6): 941-5, 1993 Dec.
Article in English | MEDLINE | ID: mdl-8233269

ABSTRACT

OBJECTIVE: To investigate the differences in local immune response between persistent and regressive cervical dysplasia. METHODS: We conducted a quantitative study of Langerhans cells, pan-T cells, and helper-inducer T cells in the subepithelial connective tissue using immunohistochemical techniques with S-100 protein antibody, UCHL1, and OPD4, respectively, in 52 paraffin sections. The subjects were patients with persistent cervical dysplasia and a comparable control group of 46 patients with regressive dysplasia. RESULTS: In the subepithelial stroma, the mean (+/- standard deviation) numbers of S-100- and OPD4-positive cells in the persistent group were 8.6 +/- 8.1 and 84.6 +/- 66.3, respectively, compared with 15.1 +/- 9.4 and 147.0 +/- 67.7, respectively, in the regression group. These data demonstrate a significant reduction of Langerhans cells and helper-inducer T cells (P < .0002 and P < .0001, respectively) with persistent dysplasia. CONCLUSION: The decreased numbers of S-100-positive Langerhans cells and helper-inducer T cells in persistent dysplasia compared to those of regressive dysplasia strongly support a decreased local immune response in persistent cervical dysplasia.


Subject(s)
Cervix Uteri/immunology , Langerhans Cells , T-Lymphocytes, Helper-Inducer , Uterine Cervical Dysplasia/immunology , Adult , Cell Count , Chronic Disease , Epithelium/immunology , Female , Humans , Middle Aged , S100 Proteins/analysis
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