BACKGROUND: Low-density lipoprotein cholesterol (LDLc) is regarded as a risk factor for endothelial dysfunction. However, LDLc stimulates the proliferation of hematopoietic stem cells (CD34-positive cells), which contribute to endothelial repair. Therefore, LDLc may have a beneficial influence on the endothelium of individuals with lower endothelial repair activity. METHODS: This cross-sectional study included 245 men aged 60-69 years. Endothelial repair activity was categorized by the circulating levels of CD34-positive cells based on median values. The status of endothelium was evaluated using the cardio-ankle vascular index (CAVI). RESULTS: Among individuals with low levels of circulating CD34-positive cells, LDL-c levels were significantly inversely correlated with CAVI and positively correlated with circulating CD34-positive cells. No significant correlations were observed among the participants with high levels of circulating CD34-positive cells. Among low levels of CD34-positive cells, the adjusted standardized parameter (β) and p value were -0.24 (p = 0.021) for CAVI and 0.41 (p < 0.001) for CD34-positive cells, whereas among high levels of CD34-positive cells, the corresponding values were 0.03 (p = 0.738) and -0.09 (p = 0.355). CONCLUSION LDLc has a beneficial influence on endothelial health among individuals with low endothelial repair activity, possibly by stimulating the proliferation of hematopoietic stem cells.
Humans ; Middle Aged ; Male ; Aged ; Cross-Sectional Studies ; Cholesterol, LDL/blood* ; Endothelium, Vascular/physiology* ; Antigens, CD34/blood* ; Hematopoietic Stem Cells

BACKGROUND: Subclinical hypothyroidism (SCH) has been reported to be associated with lower endothelial progenitor (CD34-positive) cell count, whereas an inverse association between circulating CD34-positive cell count and height loss is documented. Reports indicate height loss to be associated with all-cause mortality, and a higher CD34-positive cell count has been shown to predict longer life. Therefore, evaluating the association between SCH and height loss provides mechanistic insights underlying the association between height loss and mortality risk. METHODS: A prospective study involving 1,599 participants with normal free triiodothyronine (T3) and free thyroxine (T4) levels was conducted to determine the association between SCH and height loss.Since the free T4 level influences the supply of active thyroid hormone (free T3), the analysis was stratified by the median free T4 level. Height loss was defined as the highest quintile of annual height decrease. RESULTS: SCH was positively associated with height loss in participants with low-normal free T4 levels (below the median), but not in those with high-normal free T4 levels (at or above the median). After adjusting for sex, age, free T3 level, atherosclerosis, and known cardiovascular risk factors, the adjusted odds ratios (95% confidence interval) for height loss were 1.88 (1.02, 3.47) and 1.92 (1.02, 3.62) in the low-normal free T4 group. The corresponding values in the high-normal free T4 group were 0.37 (0.08, 1.69) and 0.43 (0.09, 1.97). CONCLUSION SCH could influence height loss, and free T4 might influence the association between SCH and height loss in euthyroid individuals. These results clarify the mechanisms underlying the association between height loss and mortality risk.
Humans ; Hypothyroidism/epidemiology* ; Thyroxine/blood* ; Male ; Female ; Prospective Studies ; Middle Aged ; Body Height ; Adult ; Aged ; Risk Factors

BACKGROUND: The absence of thyroid cysts may indicate latent thyroid damage, as demonstrated in our previous study. However, the association between the absence of thyroid cysts and latent functional damage of the thyroid is unknown. At low thyroid hormone productivity, which may be associated with latent functional damage of the thyroid, the association between thyroid-stimulating hormone (TSH) and hypertension might be enhanced. Therefore, we evaluated the association between TSH level and hypertension stratified by thyroid cyst status. METHODS: We conducted a cross-sectional study of 1724 euthyroid Japanese individuals aged 40-74 years who participated in an annual health checkup in 2014. RESULTS: In the study population, 564 and 686 participants had thyroid cysts and hypertension, respectively. A significant positive association was observed between TSH and hypertension in subjects without a thyroid cyst but not in subjects with thyroid cysts. There was a significant positive association between hypertension and TSH in subjects without a thyroid cyst (odds ratio [OR] 1.27; 95% confidence intervals [CI] 1.01, 1.61) but not in subjects with thyroid cysts (OR 0.79; CI 0.57, 1.09) in the model fully adjusted for known confounding factors. The correlation between the TSH and free triiodothyronine (fee T3) levels (simple correlation coefficient [r] = - 0.13, p < 0.01) was stronger in the subjects without thyroid cysts than in those with thyroid cysts (r = - 0.03, p = 0.525). CONCLUSIONS TSH is positively associated with hypertension only in individuals without thyroid cysts. The correlation between the TSH and free T3 levels was stronger in the subjects without thyroid cysts than in those with thyroid cysts. Therefore, the absence of thyroid cysts could be related to the association between TSH level and hypertension, possibly by indicating that the subjects without thyroid cysts had limited thyroid hormone reserves. Therefore, the absence of thyroid cysts could indicate the latent functional damage of the thyroid.
Aged ; Cross-Sectional Studies ; Cysts/etiology* ; Female ; Humans ; Hypertension/metabolism* ; Japan ; Male ; Middle Aged ; Thyroid Diseases/etiology* ; Thyroid Gland/pathology* ; Thyrotropin/metabolism*

BACKGROUND: Anti-thyroid peroxidase antibody (TPO-Ab) has been shown to cause autoimmune thyroiditis by inducing a deleterious influence on thyroid hormone synthesis. Further, thyroglobulin, which has an important role in thyroid hormone synthesis, is reported to be high in the fluid from thyroid cysts. Therefore, TPO-Ab could be associated with the presence of thyroid cyst, partly by affecting the activity of thyroid hormone synthesis. METHODS: To investigate the association between TPO-Ab and thyroid cysts, we conducted a cross-sectional study of 1432 Japanese with normal thyroid function [i.e., normal range of free triiodothyronine (free T3) and free thyroxine (free T4)] between the ages of 40 and 74 years, who participated in an annual health check-up. RESULTS: In men, the statistical power did not reach a statistical significance value. Additionally, subjects with TPO-Ab showed lower odds ratios (ORs) of thyroid cysts than those without TPO-Ab. In women, subjects with TPO-Ab showed significantly lower ORs of thyroid cysts than those without TPO-Ab. The fully adjusted ORs were 0.68 (0.40, 1.18) for men and 0.40 (0.27, 0.60) for women. When evaluating the association between logarithmic values of TPO-Ab titer and thyroid cysts in both men and women, a notable inverse correlation was observed. The fully adjusted ORs were 0.68 (0.50, 0.92) for men and 0.68 (0.57, 0.81) for women. CONCLUSION TPO-Ab titer revealed to be inversely associated with thyroid cysts among Japanese with normal thyroid function. The presence of a thyroid cyst could indicate a lower risk of having TPO-Ab among the general population with normal thyroid function.

BACKGROUND: Most studies have reported that suicide mortality rates are negatively associated with lithium levels in tap water; however, a few studies showed either no association or a positive association. Thus, the association between suicide mortality and lithium levels in tap water remains controversial. To clarify the association, our study evaluated the association between lithium levels in tap water and suicide mortality rates in Miyazaki Prefecture of Japan, after adjusting for confounding factors. METHODS: We measured lithium levels in tap water across the 26 municipalities of Miyazaki Prefecture in Japan. We examined the standardized mortality ratio (SMR) for suicide in each municipality and used the data as the average suicide SMRs over 5 years (2009-2013). Weighted least-squares regression analysis, adjusted for the size of each municipality's population, was used to investigate the association between lithium levels in tap water and suicide SMRs. In addition to a crude model, in an adjusted model, potential confounding factors (proportion of elderly people, proportion of one-person households, annual marriage rate, annual mean income, unemployment rate, the density of medical doctors per 100,000 people, annual total rainfall, and proportion of people with a college education or higher) were added as covariates. RESULTS: We showed that male and female suicide SMRs were not associated with lithium levels in tap water in Miyazaki Prefecture. After adjusting for confounders, male suicide SMRs were significantly and positively associated with the proportion of elderly people in the population and annual total rainfall, and female suicide SMRs were associated with the proportion of elderly people in the population. CONCLUSIONS No association between lithium levels in tap water and suicide mortality rates was found in Miyazaki Prefecture.
Drinking Water ; analysis ; Female ; Humans ; Japan ; Lithium ; analysis ; Male ; Suicide ; statistics & numerical data

Objectives  This study investigated the use of In-home services of the Public Long-Term Care (LTC) Insurance System by foreign residents in Osaka city to serve this population better.Methods  Using information from the WAMNET database, questionnaires were sent to 1,800 care managers (CMs) affiliated with 1,106 In-home Care Support Office and Community General Support Centers in Osaka city (1-4 CMs/site), and collected between February and early March 2011. The data collected were analyzed quantitatively, focusing on descriptive statistics. And fisher’s exact tests were used to evaluate the relationship between the Japanese communication skills and age, sex, and family structure.Results  We obtained answers from 460 CMs (collection rate 25.6%). The total number of foreign residents covered under the service by CMs was 590, and we analyzed the valid data of 312 foreign user’s information.   Home-Visit LTC and Day Care for LTC were most frequently used. 34.3% of CMs had difficulty communicating in Japanese, there was a higher proportion of people who had difficulty in communication with older age group (p<0.05), and noticed that nearly 60% faced economic hardship. Conclusion  Our results suggest that careful communication is required with older age groups. This indicates that there may be difficulties in communication and understanding the clients’ needs, which are necessary to create care plan and to ensure optimal utilization of the services. And it is possible to reduce the service required user charge due to the insufficient economic status. The support system should be strengthened to address communication and economic difficulties faced by foreign users of In-home services, from the standpoint of the service fairness.

A thirty-eight-year old woman with facial pain was diagnosed with trigeminal neuralgia, and treated with conventional carbamazepine therapy. Although the pain was alleviated to a certain degree, she visited our clinic to receive Kampo therapy. Judging from her facial injury in an accident thirty years ago, jidabokuippo was administered in addition to carbamazepine. The trigeminal neuralgia was then relieved, and Takagi's tender point in her abdomen was also reduced or disappeared. She could finally stop carbamazepine therapy. This case suggests that neuralgia patients with previous injury and Takagi's tender point can be treated with jidabokuippo.

To estimate the incidence of liver injury related to Kampo medicine containing Scutellaria baicalensis, all medical records in our clinic were retrospectively examined. Among 2,430 patients who took Kampo medicine containing Scutellaria baicalensis, liver blood tests were performed in 1,547 cases (63.7%). The possibility of liver injury related to Kampo medicine containing Scutellaria baicalensis could not be denied in 19 cases (1.2%) among the 1,547 cases. The clinical features of liver injury in 19 cases were not different from those in previous reports. In agreement with the previous literature, this study also suggests that the incidence of liver injury related to Kampo medicine containing Scutellaria baicalensis is about 1%.

Four interstitial cystitis/chronic pelvic pain syndrome (IC/CPPS) patients presenting with pain and autonomic imbatances were improved by Kampo medicine. (Case 1) a 42 year old female : Her bladder and perinial pain were relieved by ryutanshakanto and her autonomic imbalances were improved by Kamishoyosan. (Case 2) a 51 year old female : She was given anchusan which warmed the internal organs. (Case 3) a 49 year old female : Her general hypothermia was relieved by shinbuto and ninjinto. (Case 4) a 27 year old female :She was given tokishigyakukagoshuyushokyoto which warmed the lower body half. These Kampo medicines for autonomic imbalance in IC/CPPS were drugs that adjusted general condition on the basis of diagnostic processes, and logic based on states of vital energy and blood.

Maobushisaishinto was given to 10 elderly female patients with stress urinary incontinence (SUI) for 4 weeks. Five patients showed SUI improvement with its herbs. The mean age for the effective group was higher than that for the non-effective group (73.2 vs 50.2 yrs old ; p = 0.08). In former group, 2 cases demonstrated a remarkable effect ; one with the number of pads used decreasing from 8 to 2 and the other decreasing from 4 to 1.
Because of the possibilities of urethral pressure elevation with ma huang (the mao component) and improvement of detrusor overactivity with Fu zi (the bushi component), maobushisaishinto may be applicable for the aged female suffering from SUI.