Effect of caffeic acid phenethyl ester on cartilage in experimental osteoarthritis

Systemic lupus erythematosus (SLE) is characterized by the presence of various autoantibodies and the deposition of immune complex, which is cleared by Fcgamma receptors. Genotype analysis was done to investigate whether the FcgammaRIIIA-176F/V polymorphism is a risk factor for SLE in Koreans. We genotyped 145 Korean SLE patients and 75 control subjects for FcgammaRIIIA-176F/ V. After amplifying a 1.7-kb fragment containing the Fcgamma/RIIIA-176F/V polymorphic site using two FcgammaRIIIA gene-specific primers, we performed a nested polymerase chain reaction (PCR) for allele-specific genotyping at position 559 in FcgammaRIIIA. FcgammaRIIIA genotype or allele distribution was not significantly different between lupus patients and controls, and also between lupus nephritis patients and healthy controls. Neither creatinine clearance, 24 h urine proteinuria, number of American College of Rheumatology (ACR) criteria, nor the Systemic Lupus International Collaborating Clinics (SLICC)/ACR damage index was different according to the genotype. In conclusion, FcgammaRIIIA-176F/V polymorphism is not associated with SLE in Koreans.     

Computed tomography features in malignant pleural mesothelioma and other commonly seen pleural diseases.

OBJECTIVE: To investigate the computed tomography (CT) features of malignant pleural mesothelioma (MPM) cases, comparing them to those in other malignant and benign pleural diseases. MATERIALS AND METHODS: We reviewed the CT findings of 215 patients; 99 with MPM, 39 with metastatic pleural disease (MPD), and 77 with benign pleural disease. The findings were evaluated in univariate and multivariate analysis for differentiation of pleural diseases. RESULTS: In patients with MPM, the most common CT features were circumferential lung encasement by multiple nodules (28%); pleural thickening with irregular pleuropulmonary margins (26%); and pleural thickening with superimposed nodules (20%). In the majority (70%) of cases, there was rind-like extension of tumor on the pleural surfaces. In multivariate analysis, the CT findings of "rind-like pleural involvement", "mediastinal pleural involvement", and "pleural thickness more than 1 cm" were independent findings in differentiating MPM from MPD with the sensitivity/specificity values of 70/85, 85/67, and 59/82, respectively. "Rind-like pleural involvement", "mediastinal pleural involvement", "pleural nodularity" and "pleural thickness more than 1 cm" were independent findings for differentiation of malignant pleural diseases (MPM+MPD) from benign pleural disease with the sensitivity/specificity values of 54/95, 70/83, 38/96, and 47/64, respectively. Invasion of thoracic structures such as pericardium, chest wall, diaphragm, mediastinum, with pleural disease and nodular involvement of fissures, was detected infrequently; however, since these invasions were not seen in benign pleural diseases, it was concluded these invasions, if detected on a CT scan, directly suggested malignancy. CONCLUSION: A patient has extremely high probability of malignant pleural disease if one or more of these CT findings are found and the possibility of MPM is high. These findings may be important for patients in bad state or patients who do not want any invasive biopsy procedures. It is also possible to identify cases with a low probability of malignant disease.     

Anomalous course of the right coronary artery in the right atrial wall: a word of caution

We report a case of anomalous course of the right coronary artery in the wall of right atrium which was encountered during coronary artery bypass surgery. As the stenotic lesion in the vessel was proximal, the large posterior descending branch of the right coronary was grafted. Such an anomalous course of the right coronary artery has not been previously described in the literature and lack of knowledge of such an abnormal course may result in inadvertant damage during cannulation of the inferior vena cava or coronary sinus.     

Molecular genetics of colorectal cancer: An overview

Colorectal cancer (CRC) is a major cause of morbidity and mortality from cancers in the United States. Recent studies have revealed the paradigm in which sequential genetic changes (mutations) result in the progression from normal colonic tissues to frank carcinoma. In particular, the study of hereditary colorectal cancer and polyposis syndromes such as familial adenomatous polyposis and hereditary nonpolyposis colon cancer has contributed enormously to the understanding of the pathogenesis of CRC. Here we describe some of the common genetic pathways in CRC and the mechanisms of action for some of the key genes involved in the formation of CRC. The understanding of the genetic pathways and functions in CRC may lead to the development of novel therapeutic approaches for treating this deadly disease.     

Treatment of pneumothorax in newborns: Use of venous catheter versus chest tube

BACKGROUND: The traditional treatment for pneumothorax is tube thoracostomy. Chest tube placement often involves complications, particularly in newborns. The aim of this study is to introduce the method of air drainage with venous catheter and to compare two different methods, chest tube placement and venous catheter insertion, in the treatment of pneumothorax in newborns. METHODS: We treated 72 newborn patients with pneumothorax over a 4-year period in neonatal intensive care units at two different medical centers. We randomly divided the patients into two groups. In group I, we treated the patients with chest tube placement technique. We used 18-gauge venous catheter connected to an underwater system to drain air in group II patients. The duration of the procedure, the period of time that the chest tube or catheter was left in place, and the complications associated with the two different procedures were statistically compared. RESULTS: The time required to perform the venous catheter procedure was significantly shorter than that for chest tube placement (P < 0.05). The duration of the device in place was also significantly shorter in group II than group I (P < 0.05). Only two minor complications were recorded in patients who underwent venous catheter placement, and this group's complication rate was significantly lower than the rate in the chest tube group (P < 0.05). CONCLUSION: Insertion of a venous catheter is a safe alternative to chest tube placement as a method of draining air from newborn patients with pneumothorax. This is an easy and quick bedside procedure and is particularly useful for newborn patients that require immediate air drainage.     

Angry wives, abusive husbands: relationship between domestic violence and psychosocial variables

BACKGROUND: A small number of studies conducted in Pakistan have shown high rates of domestic violence. None of the studies, however, discussed associated psychosocial factors. We interviewed a group of women to look at violence and associated psychosocial factors. We wanted to see if self-esteem, quality of relationships, social support, stressful life events, psychiatric symptoms, and different measures of anger were associated with domestic violence. METHODOLOGY: In a cross-sectional survey of women presenting to primary care physicians, we used Women's Experience with Battering and Domestic Abuse Checklist to measure domestic violence. The Relationship Assessment Scale, Oslo Social Support Scale, State Trait Anger Inventory, and Evaluative Belief Scale were used to look at the correlates of violence. We used the information in a regression model to identify independent predictors of violence in this sample. RESULTS: More than half of the women reported experiencing battering and/or violence. Women in abusive relationships reported unhappiness with their intimate relationships and had high scores on 1 subscale of anger. Living in extended families was protective against violence. CONCLUSIONS: We were able to replicate findings that women in abusive relationships are not satisfied with the relationships with their partners. Living in extended families was protective against violence. Community studies may provide a better design to look at the association between abuse and poverty, literacy, self-esteem, and social support.     

Congenital macrodactyly: a clinical study

Congenital macrodactyly is a rare congenital malformation characterised by progressive enlargement of all mesenchymal elements of a digit. The present study is an attempt to draw the attention towards the similarities and differences between macrodactyly of the hand and foot. Radiographical, operative findings and histopathological examination of five cases are included in the present study. Emphasis was given to know the possible basic lesion. Radiographic findings, which differentiate this entity from other forms of local gigantism, were also analysed. The most characteristic finding noted was excessive overgrowth of fibro-fatty tissue with unusually large fatty lobules, apparently fixed by a mesh of dense fibrous tissue. Hypertrophy and tortuosity of the digital nerve, a striking feature in macrodactyly of the hand, was notably absent in cases affecting the foot. None of the patients had any other associated congenital anomalies. Neither the patients nor any of their family members had any stigmata of neurofibromatosis. Chromosomal study was normal in all of them. We conclude that in macrodactyly of the foot, excessive proliferation and accumulation of adipose tissue was the basic lesion, whereas involvement of the nerve might be the fundamental lesion in gigantism of the hand. Furthermore, whatever be the basic lesion, the final pathway must be either the local deficiency of a growth inhibiting factor or local expression of a basic intrinsic factor, leading to excessive growth of all elements of the digit.     

Effectiveness of vardenafil versus papaverine in penile Doppler ultrasonography

PURPOSE: To evaluate erectile dysfunction, penile color Doppler ultrasound is currently considered the best method. But intracavernous injection is invasive and has adverse effects, such as prolonged erection and risk of priapism. In our study we want to evaluate whether vardenafil can be used instead of papaverine in penile Doppler ultrasonography. MATERIALS AND METHODS: A total of 24 patients with erectile dysfunction underwent color Doppler ultrasound before and after intracavernous injection of 60 mg papaverine with genital and audiovisual sexual stimulation. Peak flow and end diastolic velocity were measured in the recorded waveforms obtained 0, 1, 5, 10 and 20 min after injection. The patients also underwent color Doppler ultrasound after a 10-mg oral dose of vardenafil with genital and audiovisual sexual stimulation and at least 5 days after the prior examination. The same parameters were measured at 30, 45, 60, 75 and 90 min after the drug administration. We compared the results with the values obtained after papaverine injection. RESULTS: After oral vardenafil mean peak flow velocity significantly increased starting at 30 min and achieving a maximum value at 60 min. There were no significant differences in the 2 methods in mean peak velocity 1, 5, 10 and 20 min after papaverine injection, and 30, 45, 60, 75 and 90 min after oral vardenafil administration. Although papaverine injection is the gold standard for penile color Doppler ultrasound, it has severe adverse effects such as prolonged erection which we observed in 3 patients (12.5%) and required pharmacological detumescence. After vardenafil no severe adverse effects were observed. CONCLUSIONS: Vardenafil administration achieved increased peak flow velocity comparable to that after intracavernous papaverine injection. With no prolonged erection vardenafil is a safer alternative compared to more invasive intracavernous injection and is also an alternative for patients who fear injections.