Femoral nerve palsy after total hip arthroplasty is an uncommon complication. We present a case report of delayed-onset femoral nerve palsy associated with iliopsoas hematoma and bursitis 10 years after primary total hip arthroplasty in a 57-year-old male patient with avascular necrosis of the femoral head. The patient visited our clinic due to swelling of the inguinal area with sudden-onset knee extension weakness. Radiologic examination at admission revealed suspicion of bursitis and hematoma on iliopsoas muscle. After evacuation of the hematoma and bursitis debridement, the patient's clinical symptoms improved dramatically. This is a rare report of femoral nerve palsy due to noninfectious iliopsoas bursitis and hematoma after total hip arthroplasty.
Arthroplasty, Replacement, Hip ; Bursitis ; Debridement ; Femoral Nerve ; Head ; Hematoma ; Humans ; Knee ; Male ; Middle Aged ; Necrosis ; Paralysis

Mitochondria are crucial for maintaining the properties of embryonic stem cells (ESCs) and for regulating their subsequent differentiation into diverse cell lineages, including cardiomyocytes. However, mitochondrial regulators that manage the rate of differentiation or cell fate have been rarely identified. This study aimed to determine the potential mitochondrial factor that controls the differentiation of ESCs into cardiac myocytes. We induced cardiomyocyte differentiation from mouse ESCs (mESCs) and performed microarray assays to assess messenger RNA (mRNA) expression changes at differentiation day 8 (D8) compared with undifferentiated mESCs (D0). Among the differentially expressed genes, Pdp1 expression was significantly decreased (27-fold) on D8 compared to D0, which was accompanied by suppressed mitochondrial indices, including ATP levels, membrane potential, ROS and mitochondrial Ca²⁺. Notably, Pdp1 overexpression significantly enhanced the mitochondrial indices and pyruvate dehydrogenase activity and reduced the expression of cardiac differentiation marker mRNA and the cardiac differentiation rate compared to a mock control. In confirmation of this, a knockdown of the Pdp1 gene promoted the expression of cardiac differentiation marker mRNA and the cardiac differentiation rate. In conclusion, our results suggest that mitochondrial PDP1 is a potential regulator that controls cardiac differentiation at an early differentiation stage in ESCs.
Adenosine Triphosphate ; Animals ; Cell Lineage ; Embryonic Stem Cells ; Membrane Potentials ; Mice* ; Mitochondria ; Mouse Embryonic Stem Cells* ; Myocytes, Cardiac* ; Oxidoreductases ; Pyruvate Dehydrogenase (Lipoamide)-Phosphatase* ; Pyruvic Acid* ; RNA, Messenger

Deiters' cells are the supporting cells in organ of Corti and are suggested to play an important role in biochemical and mechanical modulation of outer hair cells. We successfully isolated functionally different K+ currents from Deiters' cells of guinea pig using whole cell patch clamp technique. With high K+ pipette solution, depolarizing step pulses activated strongly outward rectifying currents which were dose-dependently blocked by clofilium, a class III anti-arrhythmic K+ channel blocker. The remaining outward current was transient in time course whereas the clofilium-sensitive outward current showed slow inactivation and delayed rectification. Addition of 5 mM tetraethylammonium (TEA) further blocked the remaining current leaving a very fast inactivating transient outward current. Therefore, at least three different types of K+ current were identified in Deiters' cells, such as fast activating and fast inactivating current, fast activating slow inactivating current, and very fast inactivating transient outward current. Physiological role of them needs to be established.
Animals ; Ear, Inner ; Guinea Pigs* ; Guinea* ; Hair ; Hearing ; Organ of Corti ; Pharmacology ; Potassium Channels ; Potassium* ; Quaternary Ammonium Compounds ; Tetraethylammonium

The authors report here on a rare case of aneurysm involving the distal lenticulostriate artery (LSA) in a 66-year-old man who presented with intracerebral hemorrhage (ICH) in the right basal ganglia and also intraventricular hemorrhage (IVH). Three-dimensional computed tomography angiography (3D-CTA) and conventional cerebral angiography showed a 4 mm, round-shaped aneurysm in the right distal LSA and this was combined with moyamoya-like disease. We performed proximal clipping of the aneurysm using a microsurgical technique and we evacuated the hematoma. After the operation, there was recurrent bleeding around the operation site and hydrocephalus gradually developed, and we implanted a ventriculo-peritoneal (V-P) shunt. The patient did well after the final shunt surgery and rehabilitation. Presently, he has no motor weakness or significant neurologic deficit, but mild cognitive dysfunction remains. When spontaneous ICH occurs in an unusual site, a thorough investigation is important to rule out a structural vascular abnormality.
Aged ; Aneurysm ; Angiography ; Arteries ; Basal Ganglia ; Cerebral Angiography ; Cerebral Hemorrhage ; Hematoma ; Hemorrhage ; Humans ; Hydrocephalus ; Neurologic Manifestations

We carried out a series of experiment demonstrating the role of mitochondria in the cytosolic and mitochondrial Ca2+ transients and compared the results with those from computer simulation. In rat ventricular myocytes, increasing the rate of stimulation (1~3 Hz) made both the diastolic and systolic [Ca2+] bigger in mitochondria as well as in cytosol. As L-type Ca2+ channel has key influence on the amplitude of Ca2+-induced Ca2+ release, the relation between stimulus frequency and the amplitude of Ca2+ transients was examined under the low density (1/10 of control) of L-type Ca2+ channel in model simulation, where the relation was reversed. In experiment, block of Ca2+ uniporter on mitochondrial inner membrane significantly reduced the amplitude of mitochondrial Ca2+ transients, while it failed to affect the cytosolic Ca2+ transients. In computer simulation, the amplitude of cytosolic Ca2+ transients was not affected by removal of Ca2+ uniporter. The application of carbonyl cyanide 4-(trifluoromethoxy) phenylhydrazone (FCCP) known as a protonophore on mitochondrial membrane to rat ventricular myocytes gradually increased the diastolic [Ca2+] in cytosol and eventually abolished the Ca2+ transients, which was similarly reproduced in computer simulation. The model study suggests that the relative contribution of L-type Ca2+ channel to total transsarcolemmal Ca2+ flux could determine whether the cytosolic Ca2+ transients become bigger or smaller with higher stimulus frequency. The present study also suggests that cytosolic Ca2+ affects mitochondrial Ca2+ in a beat-to-beat manner, however, removal of Ca2+ influx mechanism into mitochondria does not affect the amplitude of cytosolic Ca2+ transients.
Animals ; Computer Simulation ; Cytosol ; Hydrazones ; Ion Transport ; Membranes ; Mitochondria ; Mitochondrial Membranes ; Muscle Cells ; Nitriles ; Rats

STUDY DESIGN: This is a case report. OBJECTIVE: We present here a patient who had a discal cyst of the lumbar spine along with neurological symptoms. SUMMARY OF THE LITERATURE REVIEW: Discal cysts are intraspinal cysts that communicate with an adjacent intervertebral disc, and these are rare lesions that can cause lumbar radiculopathy. Because they are very rare, their natural history and the details of the therapeutic guidelines for the treatment of these cysts are still unknown. MATERIAL AND METHODS: The patient complained of moderate lumbar pain and right lower extremity radiculopathy and he was administered conservative treatment for 5 months. But the radiculopathy became aggravated and he then underwent a hemilaminectomy, cyst decompression and discectomy. RESULTS: The radiculopathy disappeared and any signs of recurrence were not found on the follow up performed at 1 year. CONCLUSION: Discal cyst is rare, but it can be treated successfully.
Decompression ; Diskectomy ; Follow-Up Studies ; Humans ; Intervertebral Disc ; Lower Extremity ; Natural History ; Radiculopathy ; Recurrence ; Spine

PURPOSE: Sexual activity is a highly personal matter and uneasy to measure their problems objectively in view of clinical field. Many investigators have been continued to rely on self-report measures of sexual function. However, there have been few report measuring female sexual function in general population in Korea. This study was aimed to investigate function by self-report measures. MATERIALS AND METHODS: 347 married women was randomly selected and asked to fill the Brief Index of Sexual Function for Women (BISF-W) which was translated into Korean and modified by authors. Three factors-interest/desire, sexual activity, and satisfaction were analyzed. RESULTS: Women were grouped by age at 10-year intervals. 21.5% of women reported to be sexually active during the past moth, and 78.5% was inactive. Most common coital frequency in all age groups pas one-two times per month. 76.1% of women showed passive response in their initiation of sexual activities. Mostly they reach orgasm only by the vaginal intercourse, and overall satisfaction rate was 55.2% including only 25% of fifties groups followed by pain. CONCLUSIONS: In general, Korean women showed less active in their sexual lives, however, they were relatively satisfied to their sexual lives. A larger study and more sophisticated, modified questionnaire, which is more considering specific social, psychological interpersonal factors would be required.
Coitus ; Female ; Humans ; Korea ; Moths ; Orgasm ; Surveys and Questionnaires* ; Research Personnel ; Sexual Behavior*

Cutaneous metastases from gastric carcinoma are uncommon. The frequency of metastses to the skin from gastric carcinoma have ranged from 0.3% to 0.4%. Carcinoma en cuirasse, first described by Velpeau in 1838, is marked sclerodermatous change and characterized by a difffuse morphea-like induration of the skin and represents a rare manifestations of breast carcinoma metastatic to the chest wall. It is vary rarely seen in lung, stomach, kidney and other metastasizing malignancies. We report a case of carcinoma en cuirase and nodular carcinoma from gastric carcinoma in a 36-year-old male who complained chiefly of multiple cutaneous nodules. He had mixed lesions of an erythematous morphea-like induration on the neck and multiple erythematous nodules on the chest and abdomen. Gastroscopy finding showed a Borrmann type IV advanced gastric carcinoma. Histopathologic examination of skin and stomach showed atypical cells with pleomorpic, hyperchromatic nuclei and scanty, eosinophilic cytoplasm, which are consistent with poorly differentiated adenocarcinoma. Immunohistochemical stainings showed positive reaction for cytokeratin. He died three months after the appearance of cutaneous lesions.
Abdomen ; Adenocarcinoma ; Adult ; Breast Neoplasms ; Cytoplasm ; Eosinophils ; Gastroscopy ; Humans ; Keratins ; Kidney ; Lung ; Male ; Neck ; Neoplasm Metastasis ; Skin ; Stomach ; Thoracic Wall ; Thorax