Metabolic responses in bullfrog, Lithobates catesbeianus after exposure to zinc, copper and cadmium.

This study investigated the activity of lactated dehydrogenase (LDH), malate dehydrogenase (MDH) enzymes and the levels of glucose, protein and triglyceride in bullfrog tadpoles after exposure to 1 µg L-1 of zinc (Zn), copper (Cu) and cadmium (Cd) isolated and combined for 2 and 16 days. Zn, Cu + Cd and Zn + Cu + Cd increased the activity of the LDH (2 and 16 days) and MDH (2 days) enzymes in the liver; and MDH increased in the kidney after 16 days in all co-exposed groups compared to the control. Glucose increased in the liver in the Zn and Cu groups at 2 and 16 days of exposure and decreased in the kidney (groups Cd, Zn + Cd and Cu + Cd) and muscle (Cd) at 2 days of exposure. After 2 days of exposure, the protein increased in the liver (Zn), in the kidney in all groups exposed to metals except in the groups exposed to Cd and Zn + Cu + Cd, which did not change and decreased in muscle in all the groups exposed to isolated metals. Regarding triglycerides, the kidney and muscle were the most affected, leading to a decrease in the Zn, Cu and Cd groups and in the Zn + Cu (16 days) and Zn + Cu + Cd groups (2 days). The anaerobiosis and aerobiosis were activated in the liver and kidney after short-term exposure (2 days) and in the kidney, the aerobic metabolism was activated after chronic exposure (16 days). The metals caused toxicity and were higher in co-exposure to metals with a potential to cause metabolism damage in L. catesbeianus.

Blood cell responses and metallothionein in the liver, kidney and muscles of bullfrog tadpoles, Lithobates catesbeianus, following exposure to different metals.

The hematological parameters and metallothionein (MT) levels in the liver, kidney and muscles were measured in bullfrog tadpoles, Lithobates catesbeianus, following exposures to 1 µg L-1 of zinc (Zn), copper (Cu) and cadmium (Cd) alone or in combination (1:1 and 1:1:1) for 2 and 16 days. Metal accumulation occurred in all organs, with the highest values found in the kidney, followed by the muscles and liver. After exposure to isolated metals, the accumulation was in the following order: Cd > Zn > Cu in the liver and muscles and Cd > Cu > Zn in the kidney. Exposure to combined metals (Zn + Cu, Zn + Cd, Cu + Cd and Zn + Cu + Cd) revealed complex responses, such as metal accumulation increased or decreased over the exposure periods, suggesting possible competion at the uptake sites and/or metabolization and elimination processes in each organ. The MT concentration increased in the organs of tadpoles following metal exposure alone, mainly in the liver, for both periods. After the combined exposures, the MT levels were higher in the liver and muscles at 16 days, suggesting that the interaction between metals was additive, and the level was decreased in the kidney after 2 and 16 days of exposure. The whole blood hemoglobin content (Hb), red blood cell count (RBCs) and mean corpuscular hemoglobin (MCH) differed from the control groups after 2 and 16 days of exposure, showing changes in the improvement of oxygen transport. The number of lymphocytes increased, and the levels of neutrophils, eosinophils, basophils and monocytes were reduced after exposure to the metals. The changes in blood cells suggested that tadpoles have a mechanism to improve oxygen transport probably because of the increased oxygen demand and a general reduction in defense cells. The exposure of L. catesbeianus to metals during the larval phase can generate long-term dysfunction to a degree, which could lead to alterations in their health status.

Separation of pygmy dipole and M1 resonances in 90Zr by a high-resolution inelastic proton scattering near 0°.

A high-resolution measurement of inelastic proton scattering off (90)Zr near 0° was performed at 295 MeV with a focus on a pronounced strength previously reported in the low-energy tail of giant dipole resonance. A forest of fine structure was observed in the excitation energy region 7-12 MeV. A multipole decomposition analysis of the angular distribution for the forest was carried out using the ECIS95 distorted-wave Born approximation code with the Hartree-Fock plus random-phase approximation model of E1 and M1 transition densities and inclusion of E1 Coulomb excitation. The analysis separated pygmy dipole and M1 resonances in the forest at E(PDR)=9.15±0.18 MeV with Γ(PDR)=2.91±0.64 MeV and at E(M1)=9.53±0.06 MeV with Γ(M1)=2.70±0.17 MeV in the Lorentzian function, respectively. The B(E1)↑ value for pygmy dipole resonance over 7-11 MeV is 0.75±0.08 e(2)fm(2), which corresponds to 2.1±0.2% of the Thomas-Reiche-Kuhn sum rule.

Histopathological diagnosis of Japanese spotted fever using formalin-fixed, paraffin-embedded skin biopsy specimens: usefulness of immunohistochemistry and real-time PCR analysis.

Japanese spotted fever (JSF) is caused by Rickettsia japonica, and lethal cases are reported yearly in southwest Japan. We thus established the method of diagnosing JSF by immunohistochemistry (IHC) and real-time PCR (RT-PCR) using formalin-fixed, paraffin-embedded skin biopsy specimens. Two monoclonal antibodies were used for IHC, and the 17k genus common antigen gene served as the target of RT-PCR. We collected skin biopsy (n = 61) and autopsy (n = 1) specimens from 50 patients clinically suspected of JSF. Immunohistochemically, the rickettsial antigens were localized as coarse dots in the cytoplasm of endothelial cells and macrophages. Thirty-one seropositive cases plus one autopsy case (group A) and nine seronegative cases but with positive IHC and/or RT-PCR (group B) were judged as JSF. Nine cases were regarded as non-JSF disorders based on negative serology, IHC and RT-PCR (group C). Of 50 biopsies (eschar 34, eruptions 10, and scabs 6) from groups A and B, IHC and RT-PCR positivities were 94% (32/34) and 62% (21/34) for eschar, 80% (8/10) and 30% (3/10) for eruptions, and 33% (2/6) and 50% (3/6) for scabs. For IHC, eschar was most suitable, and scabs were insufficient. Unexpectedly, 18 biopsies happened to be fixed in 100% formalin, and this lowered the detection rate by RT-PCR, but IHC was tolerant. Sequence analysis using five skin biopsy specimens confirmed a 114 bp DNA stretch homologous to that reported for the target gene of R. japonica. In 26 (84%) of the 31 seropositive patients, the diagnosis was made by IHC and/or RT-PCR earlier than serology.

Inhibitory effects of Japanese apricot (Prunus mume Siebold et Zucc.; Ume) on Helicobacter pylori-related chronic gastritis.

OBJECTIVES: We investigated the correlation between Japanese apricot (JA) intake and Helicobacter pylori-related chronic atrophic gastritis (CAG). METHODS: A questionnaire was administered and serum anti-H. pylori IgG antibodies measured in 1358 asymptomatic adults. The subjects were divided into high-intake and low-intake groups. Histological and serological evaluation of H. pylori-related CAG was performed in 68 non-elderly volunteers. RESULTS: The H. pylori-negative rate did not differ significantly between the high-intake and low-intake groups. Mean antibody titers were lower in the high-intake group, but the difference was not significant. There was no significant difference in the rate of H. pylori infection on the basis of JA intake when subjects were stratified by age. Among H. pylori-positive non-elderly subjects, antibody titers were significantly lower in the high-intake group (P=0.041). Endoscopic tissue biopsy from the 68 volunteers showed less H. pylori bacterial load and mononuclear infiltration irrespective of gastric site in the high-intake group. In the high-intake group, antral neutrophil infiltration was significantly less pronounced and corporal atrophy was less extensive. Serological evaluation using serum PG levels also confirmed these histopathological data. CONCLUSIONS: Our findings strongly indicate a preventive effect of JA intake on CAG by inhibiting H. pylori infection and reducing active mucosal inflammation.

M1 gamma strength for zirconium nuclei in the photoneutron channel.

Photoneutron cross sections were measured for 91Zr, 92Zr, and 94Zr near the neutron separation energy with quasimonochromatic gamma rays. The data exhibit some extra components around the neutron threshold. A coherent analysis of the photoneutron data for 92Zr together with the neutron capture on 91Zr based on the microscopic Hartree-Fock-Bogoliubov plus quasiparticle random-phase approximation model for the E1 strength has revealed the presence of an M1 resonance at 9 MeV. The microscopic approach systematically shows the same M1 strength in the photoneutron cross section for 91Zr and 94Zr. The total M1 strength is about 75% larger than the strength predicted by the systematics, being qualitatively consistent with the giant M1 resonance observed in the inelastic proton scattering.

Arrangement of fiber tracts forming Probst bundle in complete callosal agenesis: report of two cases with an evaluation by diffusion tensor tractography.

We report two patients with complete callosal agenesis in whom Probst bundles in both hemispheres could be depicted by diffusion tensor tractography (DTT). While one patient had no associated telencephalic anomaly other than callosal agenesis, the other had cortical dysplasia in the right frontal lobe. Although Probst bundles in the three normal hemispheres were well developed, that in the hemisphere which was affected by cortical dysplasia was small and poorly developed. DTT also showed that the fibers from the frontal pole ran more on the inner side of the Probst bundle than those from a more caudal region of the frontal lobe. Furthermore, fibers from the orbital gyri ran along the outermost side of Probst bundle. The arrangement of these fiber tracts in Probst bundle may reflect the developmental process of callosal fibers in their normal formation.

Partial photoneutron cross sections for the isomeric state 180Tam.

Photoneutron cross sections for (181)Ta(y, n) (180)Ta(m) were determined from simultaneous measurements of total cross sections (sigma(tot) and ground-state cross sections (sigma(gs)) for (180)Ta in photodisintegration of with laser Compton-backscattered rays. Techniques of direct neutron counting and photoactivation were used for the measurement of sigma(tot) and sigma(gs), respectively. The partial cross sections for the isomeric state serves as a novel probe of the nuclear level density of (180)Ta. Implications for the p- and s-process nucleosynthesis of (180)Ta(m) are given.

Paclitaxel-platinum combination chemotherapy for advanced or recurrent ovarian clear cell adenocarcinoma: a multicenter trial.

The therapeutic effect of a combination of paclitaxel (PTX) and platinum (PLT) in ovarian clear cell adenocarcinoma (CC) patients with measurable disease has yet to be elucidated. In this study, we used retrospective review to evaluate the results of treatment with a combination of PTX and PLT in CC patients with measurable disease. A total of 28 patients with measurable residual CC (15 cases with primary disease, 13 cases with recurrent disease) treated with combination PTX-PLT chemotherapy was identified through medical records from ten institutions. Clinical response to chemotherapy was evaluated using Response Evaluation Criteria in Solid Tumors criteria. Of the 28 cases, 8 of 15 patients with primary disease (53.3%) and 3 of 13 patients with recurrent disease (23.1%) responded to PTX-PLT chemotherapy. The response rate for cases with late recurrent disease (>12 months) was 20% (1/5), whereas the rate was 25% (2/8) for cases with early recurrent (<12 months) or refractory disease. Our results indicate that the combination of PTX and PLT may have greater efficacy against CC than conventional PLT-based chemotherapy that does not include PTX.

Cimicifuga racemosa L., Trifolium pratense L. e Vitex agnus-castus L.: a correspondência das indicações contida nas bulas dos fitoterápicos e o respaldo científico / Cimicifuga racemosa L., Trifolium pratense L. and Vitex agnus-castus L.: the degree of correspondence between instructions supplied with herbal medical preparations and relevant scientific data

É cada vez maior o número de mulheres que utilizam fitoterápicos como terapia alternativa para a menopausa, entretanto, na maioria das vezes esses produtos não possuem um mecanismo de ação conhecido, tão pouco eficácia clinica comprovada. O presente estudo objetiva avaliar a correspondência das indicações clínicas e os achados científicos de três produtos fitoterápicos de elevado índice de vendas na região de Piracicaba, destinados ao alívio dos sintomas da menopausa. Para isso foi realizado um levantamento dos fitoterápicos com maior venda numa farmácia pertencente a uma grande rede e lista das as plantas medicinais que compunham esses medicamentos. Posteriormente, verificou-se no Dicionário de Especialidades Farmacêuticas (DEF) 2004/05 todos fitoterápicos que tinham em sua composição pelo menos uma das três plantas medicinais selecionadas (Cimicifuga racemosa L., Trifolium pratense L. e Vitex agnus-castus L.) e feito um levantamento de como estavam registrados na ANVISA. Para análise da segurança do uso e eficácia dessas plantas medicinais fez-se uma busca em bases de dados científicos MEDLINE procurando trabalhos pré-clínicos de toxicidade e clínicos controlados randomizados que comprovassem a indicação terapêutica da planta. Dentre os resultados encontrados obteve-se que nenhum trabalho sobre toxicidade referia-se a segurança do uso da planta. Quanto a eficácia, das sete indicações propostas pelo fabricante do medicamento que contém a Cimicifugaracemosa L., somente uma das indicações se confirmava em estudo publicado; das nove indicações descritas na bula da Vitex agnus-castus L., duas se confirmavam através de pesquisas realizadas; e, das sete listadas para a Trifolium pratense L., uma foi comprovada.

Use of intraoperative dynamic infrared imaging with detection wavelength of 7-14 microm in the surgical obliteration of spinal arteriovenous fistula: case report and technical considerations.

BACKGROUND AND OBJECTIVE: Although improvements of spatial and temporal resolution in infrared (IR) imaging have enabled intraoperative real-time acquisition of physiological and pathological information on living organs, the imaging qualities of anatomical delineation of blood vessels and functional delineation of blood flow were insufficient to serve as visual monitoring. The main reason was partly due to the lack of an appropriate IR detection IR band (formerly 3 - 5 micro m), and the broad dynamic range in previous modalities. METHODS: To make a good contrast between blood vessels and surrounding tissues, the detection wavelength was shifted to the long-wave (7 - 14 micro m) part of IR spectrum, which includes the peak IR wave from living tissue (9 - 10 micro m), and the dynamic range was confined to +/- 10 degrees C around 35 degrees C. The novel camera system (IRIS IV infrared imaging system) was used for the visual monitoring of blood flow during the obliteration of a spinal perimedullary arteriovenous fistula at Th 7 in 71-year-old male patient. The temperature resolution of camera was 0.15 degrees C, with its intensity resolution of 16 bit (320 x 240 pixels), and data were stored at a rate of 30 frames/second. High-quality delineation of blood vessels and blood flow was obtained all through the procedure without use of cold saline, which was an inevitable procedure to make contrast in the previously used thermography. However, the occasional use of an air blower was helpful to achieve adequate images in the deep and narrow area of the surgical field. The amount of shunt flow reduction was visualized by the intensity in the acquired imaging, which was also confirmed later by digital subtraction angiography. CONCLUSION: From the present experience, it is considered that this type of imaging may be able to substitute intraoperative blood vessel and blood flow monitoring in spinal and other neurosurgical disorders.

Magnetic resonance imaging of thoracic epidural venous dilation in Hirayama disease.

Hirayama disease is a nonprogressive, asymmetric amyotrophy of the hands and forearms, possibly caused by compression of the lower cervical cord on neck flexion. The authors used phase-contrast MR angiography to study a patient with this disorder and observed abnormal spinal epidural venous dilation on neck flexion. In addition to mechanical compression of the lower cervical cord, venous congestion in the spinal canal may have a role in promoting anterior horn damage.

Pulmonary thromboembolism following gynecologic surgery and cesarean section.

OBJECTIVE: To investigate the incidence and risk factors of symptomatic pulmonary thromboembolism (PTE) in patients following gynecologic surgery or cesarean section in Japan. METHOD: We examined the clinical records of all patients who have undergone gynecologic surgery or cesarean section at 32 hospitals affiliated with the Tohoku University Hospital between 1990 and 1999. RESULT: The total number of gynecologic surgical procedures and cesarean sections were 61648 and 26502, respectively. Twenty-five of the 88150 (0.028%) patients developed clinical PTE. Among the PTE patients who underwent gynecologic surgery, 86% were more than 40 years of age, 36% were obese (BMI>25 kg/m(2)) and 43% had uterine body cancer. Among the PTE patients who underwent cesarean section, 36% were more than 35 years of age and 55% were obese (BMI>29 kg/m(2)). CONCLUSION: Risk factors in Japanese patients undergoing gynecologic surgery may include age and cancer of the uterine body; risk factors for the development of PTE following cesarean section may include age and obesity.

Complete response to radiation therapy in a patient with chemotherapy-resistant ovarian clear cell adenocarcinoma.

Recurrent ovarian cancer after front-line chemotherapy is incurable. In most institutions, chemotherapy is continued as salvage therapy after primary chemotherapy failure and despite the fact that long-term survival and complete responses are infrequent. Radiation therapy for patients with recurrent ovarian cancer has often been done with palliative intent. A patient with ovarian clear cell adenocarcinoma received irradiation with palliative intent to the whole pelvis after chemotherapy (paclitaxel, carboplatin, and irinotecan) produced no effect. Although she developed a rectovaginal fistula due to cancer invasion during radiation therapy. One year and half after the therapy, she is still alive with no evidence of disease. In an effort to maximize salvage potential and quality of life while minimizing toxicity, selected patients with ovarian cancer should be treated with radiation therapy directed to residual or recurrent sites.

Gastrointestinal stromal tumors: clinicopathological study of Chinese cases.

In the present study, we reviewed 73 Chinese cases of gastrointestinal stromal tumor (GIST), and analyzed factors in evaluating malignant potential, in particular focusing on Ki-67 index and p53 expression to determine whether these can be used as prognostic indicators in GIST. The p53 positive rate was 50.7% and it was significantly higher in malignant (25/35; 71.43%) than in benign cases (13/38; 34.21%). A Ki-67 labeling index of >10% was also significantly different between malignant (23/35; 65.71%) and benign cases (14/38; 36.84%). In the cases in which the patient died, 15/21 and 14/21 cases showed expression of p53 and Ki-67, respectively; both had a higher expression than in surviving cases. Comparing the cases positive for both Ki-67 and p53 with those positive for Ki-67 or p53 alone, and those negative for both Ki-67 and p53, the latter demonstrated the best prognosis. The study also indicated that the malignant potential of GIST is correlated with the mitotic index (> or =1/10 high-power fields; HPF), tumor size (> or =5 cm), high cellularity, tumor invasive growth, tumor location, tumor hemorrhage and tumor necrosis.

A case of hemiplegic migraine in childhood: transient unilateral hyperperfusion revealed by perfusion MR imaging and MR angiography.

We report on an 8-year-old girl with a typical attack of hemiplegic migraine, in whom MR angiography and perfusion MR imaging revealed unilateral dilation of branches of both the middle and posterior cerebral arteries and hyperperfusion of the ipsilateral hemisphere, respectively. The findings resolved spontaneously after the attack. These imaging techniques should be indicated for patients with migraine attacks and may play a role in assessing the vascular events in migraine headache.

The analyses of 17beta-hydroxysteroid dehydrogenase isozymes in human endometrial hyperplasia and carcinoma.

Intratumoral metabolism and synthesis of estrogens are considered to play very important roles in the pathogenesis and development of human endometrial adenocarcinoma. The 17beta-hydroxysteroid dehydrogenase (17beta-HSD) isozymes catalyze the interconversion of estradiol (E2) and estrone and thereby serve to modulate the tissue levels of bioactive E2. To elucidate the possible involvement of this enzyme in human endometrial carcinoma, we first examined the expression of 17beta-HSD type 1 and type 2 in 20 normal cycling human endometria, 36 endometrial hyperplasia, and 46 endometrial endometrioid adenocarcinoma using immunohistochemistry, and we then studied immunoreactivity of 17beta-HSD type 2 using immunoblotting analyses, the activity of 17beta-HSD type 1 and type 2 using thin-layer chromatography and their expression using RT-PCR in endometrial endometrioid adenocarcinoma. We correlated these findings with various clinicopathological parameters to examine the biological significance of 17beta-HSDs in human endometrial disorders. 17beta-HSD type 2 immunoreactivity in normal endometrium was present in all cases of secretory phase (n = 14), but not in any endometrial mucosa of proliferative phase (n = 6). In addition, 17beta-HSD type 2 immunoreactivity was detected in 27 of 36 (75%) endometrial hyperplasia and 17 of 46 (37%) carcinoma cases. 17beta-HSD type 1 immunoreactivity was not detected in all the cases examined. In both endometrial hyperplasia and carcinoma cases there were significant positive correlations between 17beta-HSD type 2 and progesterone receptor labeling index (LI). In carcinoma cases, a significant inverse correlation was detected between 17beta-HSD type 2 immunoreactivity and age. In addition, 17beta-HSD type 2 immunoreactivity was also correlated with 17beta-HSD type 2 enzymatic activity, and semiquantitative analyses of 17beta-HSD type 2 messenger RNA. No significant correlations were detected between 17beta-HSD type 2 and estrogen receptor LI, Ki67 LI, amount of aromatase messenger RNA or histological grade. These data indicated that the expression of 17beta-HSD type 2 in hyperplastic and/or neoplastic endometrium may represent altered cellular features through hyperplastic and neoplastic transformation. However, 17beta-HSD type 2 may also play some protective and/or suppressive roles toward unopposed estrogenic effects through inactivating E2 in situ, especially in premenopausal patients.

Retinoid receptors in the human endometrium and its disorders: a possible modulator of 17 beta-hydroxysteroid dehydrogenase.

Retinoids have recently been proposed to modulate estrogenic actions in various sex steroid-dependent neoplasms, but little has been studied in human endometrial disorders. Therefore, in this study, we first examined the immunolocalization of retinoic acid receptor alpha, beta, and gamma, and retinoid X receptor (RXR) alpha, beta, and gamma in 20 normal cycling human endometria, 34 endometrial hyperplasia, and 46 endometrioid endometrial adenocarcinomas. We then correlated these findings with other clinicopathological parameters, especially in the correlation between retinoid receptor subtypes and the status of steroid hormone receptors, 17 beta-hydroxysteroid dehydrogenase (17 beta-HSD) and aromatase. We also then examined the effects of retinoic acid on the expression of 17 beta-HSD type 2 in cell lines derived from endometrial carcinoma using Northern blotting analysis to examine the possible roles of retinoids in in situ endometrial estrogen metabolism. Among these six retinoid receptors examined, RXR gamma immunoreactivity was exclusively detected in the epithelial cells of the secretory phase endometrium but not of the proliferative phase, which was well correlated with 17 beta-HSD type 2 immunolocalization. However, in endometrial hyperplasia, RXR gamma was not correlated with 17 beta-HSD type 2. In endometrioid endometrial adenocarcinoma, there was a statistically significant correlation between 17 beta-HSD type 2 immunoreactivity and RXR gamma labeling index (LI) (P < 0.001) and between RXR gamma LI and progesterone receptor LI (r = 0.501, P = 0.003). A significant inverse correlation was also detected between RXR gamma LI and patient age (r = 0.449, P = 0.015). No statistically significant correlation was obtained between LIs of receptors and other clinicopathological parameters including the status of intratumoral aromatase examined by immunohistochemistry. In the endometrial carcinoma cell line, RL95-2, retinoic acid markedly increased the level of 17 beta-HSD type 2 messenger RNA in a time- and dose-dependent manner. These results all suggest that retinoic acids may be involved in modulation of in situ estrogen metabolism in both normal and neoplastic human endometrium possibly through RXR gamma by stimulating the expression of 17 beta-HSD type 2.

Prognostic significance of neuroendocrine differentiation, proliferation activity and androgen receptor expression in prostate cancer.

Androgen, acting via the androgen receptor (AR), is associated with the development and progression of prostate cancer. Anti-androgen therapy is widely used to manage prostate cancer. However, the conversion of the tumor from a hormone-sensitive to a hormone-insensitive status causes such therapy to fail. Several mechanisms have now been put forward for this conversion, including neuroendocrine (NE) differentiation of the tumor cells. In this study, we evaluated the prognostic significance of tumor-cell proliferation activity, NE differentiation and AR expression. Formalin-fixed, paraffin-embedded sections were prepared from 42 patients with adenocarcinoma of the prostate. Using antibodies to AR, the Ki-67 antigen (MIB-1), chromogranin A and synaptophysin, immunohistochemical expression of AR, tumor proliferation activity and NE differentiation were analyzed. Our study revealed that AR expression was significantly lower in adenocarcinoma (52.2 +/- 27.1%) than in non-tumorous prostate tissue (68.3 +/- 18.3%; P < 0.001). NE differentiation was found in 50% of the tumors, which was correlated with the Gleason score (P < 0.05). An univariate analysis revealed a significant correlation between progression-free survival with both AR expression (P < 0.01) and proliferation activity (P < 0.001). NE differentiation was not a prognostic factor in this study.

Calcitonin receptor gene polymorphism in japanese women: correlation with body mass and bone mineral density.

We have identified a polymorphism at position 1377 of the calcitonin receptor (CTR) gene which generates CC, CT, or TT genotype. In this study, the genotypes of the CTR and their relationship with the body height, the body weight, the bone mineral density (BMD), and osteocalcin levels were examined in 152 healthy Japanese women aged 16-43 years. The CTR genotypic frequencies in the Japanese population were 77.0% for CC, 20.4% for CT, and 2.6% for TT. The height, BMD, and osteocalcin levels were not significantly different among these three genotypes. The body weight adjusted for height in these three groups was significantly different in the order of TT, CT, and CC (P = 0.0454 by analysis of covariance). In combined analysis of the VDR genotype (B,b) and the CTR genotype (C,T), the body height was found to be significantly different between CCB and others (P = 0.0236). In addition, analysis of the CTR genotypic frequency using 64 blood samples from Japanese and 47 blood samples from Caucasians indicated that there was a significant difference between the two races (P < 0.0001). We found that C allele was predominant in the Japanese population, however, Caucasians have an almost equal ratio of the C and T. In conclusion, the CTR allele is one of the genetic factors regulating body weight in Japanese women.