Vitronectin (VN) is an extracellular matrix protein with a crucial role in regulating bone remodeling. In this study, we aimed to investigate the effect of VN deficiency in a mouse model of osteoporosis induced by ovariectomy (OVX).The findings revealed that the absence of VN led to an increase in the activity of tartrate-resistant acid phosphatase (TRAP), a marker for osteoclasts, in the plasma of OVX-operated mice. TRAP staining further demonstrated that VN deficiency resulted in a higher number of osteoclasts within the femurs of OVX-operated mice. X-ray micro-computed tomography analysis of the femurs in OVX-operated mice indicated that VN deficiency significantly suppressed the OVX-induced increase of marrow area and total volume of bone. Additionally, we assessed structural model index (SMI) and degree of anisotropy (DA) as indices of osteoporosis. The results showed that VN deficiency effectively attenuated the OVX-induced increase in SMI and DA among OVX-operated mice. In summary, our study demonstrates the vital role of VN in regulating osteoclastogenesis and bone remodeling in the mouse model of osteoporosis.

Since hand deformities in rheumatoid arthritis (RA) are relatively not very painful, the worsening of the deformities often goes unnoticed and the functional impairment progresses irreversibly. Herein, we report a case of boutonnière deformity of the left middle and ring fingers treated with rehabilitation since an early stage. The patient was a 58-year-old woman who was referred to our hospital due to joint pain in the fingers and feet, following which a diagnosis of RA as made；however, she could not be administered methotrexate due to complications. PIP joint deformity of the left middle and ring fingers developed later. The middle finger was in -50-degree extension and difficult to correct passively, while the ring finger was in -35-degree extension and correctable. Surgery for the left middle finger was proposed based on the diagnosis of boutonnière deformity；however, consent was not obtained. After a steroid injection in the painful middle finger, she was managed using a Capener splint and ROM exercises with finger stretching. The symptoms improved five months following the rehabilitation intervention. Nalebuff et al. classified the severity of the boutonnière deformity based on the limited PIP joint extension and recommended treatment accordingly. In this case, surgical treatment was believed to be required；however, since the patient refused surgery, conservative treatment was chosen. Although the extension was severe, there was little joint destruction, due to which the symptoms improved with early and active intervention. Orthotic treatment and occupational therapy were effective in improving ADL.

Since hand deformities in rheumatoid arthritis (RA) are relatively not very painful, the worsening of the deformities often goes unnoticed and the functional impairment progresses irreversibly. Herein, we report a case of boutonnière deformity of the left middle and ring fingers treated with rehabilitation since an early stage. The patient was a 58-year-old woman who was referred to our hospital due to joint pain in the fingers and feet, following which a diagnosis of RA as made；however, she could not be administered methotrexate due to complications. PIP joint deformity of the left middle and ring fingers developed later. The middle finger was in -50-degree extension and difficult to correct passively, while the ring finger was in -35-degree extension and correctable. Surgery for the left middle finger was proposed based on the diagnosis of boutonnière deformity；however, consent was not obtained. After a steroid injection in the painful middle finger, she was managed using a Capener splint and ROM exercises with finger stretching. The symptoms improved five months following the rehabilitation intervention. Nalebuff et al. classified the severity of the boutonnière deformity based on the limited PIP joint extension and recommended treatment accordingly. In this case, surgical treatment was believed to be required；however, since the patient refused surgery, conservative treatment was chosen. Although the extension was severe, there was little joint destruction, due to which the symptoms improved with early and active intervention. Orthotic treatment and occupational therapy were effective in improving ADL.

Objective: Recently, we reported that long-term intake of a water-soluble extract from culture medium of Ganoderma lucidum mycelia (WER) reduced hyperglycemia and enhanced glucose transporter-4 (GLUT4) translocation to the plasma membrane in skeletal muscles and adipose tissue in KK-A^y mice, a type 2 diabetic animal model with obesity. In the present study, we investigated the effect of WER on hepatic carbohydrate metabolism.
Methods: Female KK-A^y mice were given free access to water and high-fat food containing 0.5% WER for 8 weeks, and blood glucose levels were assessed every week. At the end of the experimental period, the expression and activities of sugar metabolic enzymes in the liver were determined by Real Time RT-PCR and each activity measurement method. Also, the amount of glycogen was measured by anthrone-sulfuric acid method. Furthermore, the expression level of GLUT2 and activation of AMP kinase (AMPK) and glycogen synthase kinase 3β (GSk3β) was also determined by western blot analysis.
Results: The mice with the high-fat ingestion showed a gradual increase in the levels of blood glucose and body weight. In the WER-treated mice, the blood glucose level was suppressed after 2 weeks of intake. The gene expression and enzyme activities of both glucose-6-phosphatase and phosphoenolpyruvate carboxykinase were suppressed, whereas those of glucokinase were increased in the mice with WER intake and pioglitazone administration. The accumulation of glycogen was increased. Moreover the expression of GLUT2 and phosphorylation levels of AMPK and GSk3β were also increased in the mice with WER intake.
Conclusion: These results indicate that WER affects hepatic carbohydrate metabolism, which may derive from the suppression of gluconeogenesis through the modulation of related enzymes and enhancement of glucose uptake, glycolysis and glycogen synthesis.

Introduction: Tramadol (TRM) has been included as a weak opioid at the second step of the WHO analgesic ladder and has been widely used in palliative medicine. Here we report a case of amelioration of cancer pain by TRM therapy in a female patient with myasthenia gravis (MG). Case:The patient was a 70’s woman who was diagnosed with advanced endometrial carcinoma and suffered from chest pain caused by chest metastasis. 25 mg of a TRM capsule was orally administered three times a day. The dose was increased to 50 mg twice a day. It was resulted in sound pain relief with transient muscle weakness but without a myasthenic crisis.

Objective: This study was conducted to analyze the effects of acupuncture regarding prevention of migraine attacks based on the measurements of headache days, and tenderness and muscle tightness in the neck and shoulder muscles and in the masticatory muscles, and to evaluate the relationship between them. Methods: The subjects were 70 patients (22 men and 48 women) who satisfied the diagnostic criteria of migraine according to The International Classification of Headache Disorders, 2nd edition. The mean age was 35.5±14.3 years (mean±S.D.). Thirteen patients had migraine with aura and 57 had migraine without aura.   Acupuncture was performed for 2 month; the number of days with a moderate or severe headache as well as tenderness and muscle tightness of the neck, shoulder and masticatory muscles, were assessed before and after acupuncture treatment. In addition, the relationship between the decrease in the number of headache days and improvement in tenderness and muscle tightness was analyzed. Results: Acupuncture reduced the number of days with a moderate or severe headache (p<0.05) and improved tenderness and muscle tightness (p<0.01). Also, a positive correlation was noted between the decrease in the number of headache days and improvement of neck, shoulder and masticatory muscle tenderness; the correlation with the improvement of neck tenderness was the strongest. Discussion and Conclusion: When acupuncture was performed continuously for a certain period, the number of headache days decreased, and tenderness and tightness in the neck, shoulder and masticatory muscles improved, demonstrating the efficacy of acupuncture. The results suggest that acupuncture prevents the attacks by relieving muscle tightness. The mechanism by which acupuncture would prevent migraine attacks can be its effect on higher brain centers via the spinal nucleus of the trigeminal nerve through the upper cervical plexus and trigeminal nerve as the afferent pathways.

[Introduction]There are few studies on the effect of acupuncture on QOL and work ability. Therefore, by this prospective study, we examined the effect of acupuncture treatment for QOL and work ability of visual display terminal (VDT) workers.
[Methods]Sixty-one VDT workers participated as subjects (41 males, 20 females). Acupuncture sessions were performed once a week for 4 weeks. Acupuncture points were decided by individualized VDT workers neck and shoulder symptoms points. Disposable press tack needles were used. Improvement of SF-36 and the work ability index were evaluated.
[Results]All VDT workers completed follow-up. There were statistically significant improvements in Mental Component Score (MCS), Physical Component Score (PCS), Role Physical and Body-Pain of the SF-36, and WAI. Regular correlations between before WAI and MCS, PCS, and 8 subscales of the SF-36 were observed. In addition improvement rate of WAI and Body-Pain were observed.
[Conclusion]Symptoms in the neck shoulder stiffness of the VDT workers was improved by acupuncture, and QOL/work ability improved.

Objective: The water-soluble extract of Ganoderma lucidum mycelia (WER) is prepared from a solid medium composed of bagasse and rice bran overgrown with Ganoderma lucidum mycelia. Recently, we reported that WER shows a blood glucose-lowering effect in maltose-loaded non-diabetic mice. Here, we investigated the efficacy of WER in type 2 diabetic state using KK-A^y mice. Moreover, the food-drug interactions of WER with α-glucosidase inhibitors, voglibose or acarbose were examined using both in vitro and in vivo experiments.
Methods: The glucose-lowering effects of oral administration in vivo of WER alone, or concomitant administration of WER with voglibose/acarbose on the elevation of blood glucose levels by sugar-tolerance tests were examined in KK-A^y mice. The inhibitory effects on α-glucosidase in vitro were also evaluated.
Results: Oral administration of WER (1 g/kg), which did not affect fasting blood glucose, significantly suppressed the hyperglycemia after loading of maltose (18% of decrease in AUC) compared to the water-administrated control mice. In vitro study showed that WER inhibited maltase in concentration-dependent manner. The inhibitory effects of lower concentrations of voglibose or acarbose on α-glucosidase activity were additively enhanced by the presence of WER, but those of higher concentrations were not affected. The glucose-lowering effect of voglibose (0.1 mg/kg) disappeared in maltose-loaded KK-A^y mice when the drug was concomitantly administrated with WER (1 g/kg), whereas acarbose (16 mg/kg) with WER showed no significant change in its effect.
Conclusion: These results demonstrated that WER shows the glucose-lowering effect in maltose-loaded KK-A^y, which may be based on inhibition of the α-glucosidase activity. The present study suggests that concomitant intake of WER with voglibose may override the therapeutic effect of voglibose on postprandial hyperglycemia by food-drug interaction in diabetic state.

Objective: Lentinus edodes (Shiitake) is a very popular mushroom in Asian cuisine. The water-soluble extract from culture medium of Lentinus edodes mycelia (LEM), which is commercially available as a nutritional supplement, is prepared by hot-water treatment from a solid medium composed of bagasse and defatted-rice bran overgrown for about 4 months with its mycelia. LEM was previously reported to have antioxidant activity and to suppress various oxidative damages. In this study, the neuroprotective effects of 2-week intake of LEM on cerebral ischemic damage induced by hypoxia/ischemia (H/I) followed by reoxygenation in mice were examined.
Method: Male C57BL/6J mice were divided into three groups, fed for two weeks with the control laboratory powder chow, 0.5% LEM-contained chow, or 1% LEM-contained chow, respectively. Cerebral ischemic damage was induced in the mice by H/I (i.e., unilateral ligation of the carotid artery and exposure of 8%O₂ for 30 min). Twenty-four hours after H/I, total plasma oxidative stress, neurological deficits, cerebral infarction volume were evaluated in each group. Furthermore, the number of apoptotic cells in ischemic penumbra, the hippocampal CA1 and CA2, and the somatosensory area of the cortex, were analyzed by TUNEL staining and cleaved caspase-3 immunostaining.
Results: The infarct area assessed 24-h after H/I was extended to the corpus striatum and cortex in the control mice. Treatment of LEM dose dependently improved plasma oxidative stress, neurological deficits, and cerebral infarction volume. Moreover, LEM decreased the levels of dihydroethidium activity as an index of super oxide production and the number of apoptotic cells in ischemic penumbra.
Conclusion: These results show that chronic intake of LEM relieves the hypoxia-induced cerebral ischemic injury, which may be attributed to the antioxidant effects of LEM.

[Introduction]Recently, in the development of information technology, VDT workers are increasing rapidly. Physical and mental health symptoms associated with working at visual display terminals (VDTs) are controversial. However, there are few studies about the effect of acupuncture treatment on eye fatigue, neck and shoulder stiffness that many VDT workers have.
Therefore, in this prospective study, we examined the effect of acupuncture treatment for complaints of VDT workers.
[Methods]Sixty-one VDT workers participated as subjects (41 males, 20 females). Acupuncture sessions were performed once a week for four weeks. Acupuncture points were decided by the patient's muscleskeletal distress.
Disposable press tack needles were used. Visual Analogue Scale (VAS) was used to determine eye fatigue, neck and shoulder stiffness. Improvements of each VAS were evaluated. Then we analyzed improvement on shoulder and neck stiffness associated with eye fatigue.
[Results]The neck and shoulder distress of patients was reduced in four weeks by acupuncture treatment. A regular correlation between the improvement rate of eye fatigue and neck/shoulder stiffness was observed.
[Conclusion]The neck and shoulder stiffness was improved by acupuncture treatment. According to improved symptoms, eye fatigue was mitigated as well. Thus it was suggested that utility of acupuncture is high in the field of industrial medicine.