Ca&Bone

[NEWS OF THE HUNGARIAN OSTEOPOROSIS PATIENTS’ SOCIETY]

JUNE 20, 2005

Ca&Bone - 2005;8(02)

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Ca&Bone

[Disturbance of bone development in experimental hepatic cirrhosis in growing rats]

FERENCZ Viktória és munkatársai

[INTRODUCTION -The pathomechanism of hepatic osteopathy is not fully understood.We investigated how bone parameters change in growing rats with experimentally induced fatty liver, liver cirrhosis and hepatocellular carcinoma. METHODS - Liver disease was induced by administration of CCl4 and phenobarbital (PB) following a single injection of diethylnitrosamine (DEN) in 55 Fischer 344 rats.Animals were sacrificed and their femur removed at week 8 or 16. Bone mineral content (BMC), femoral length, cortical index (ratio of cortical thickness and total diameter at the diaphysis) and ultimate bending load (Fmax) of femora were determined. Results of animals treated with DEN+PB+CCl4 (group DPC, n=21) were compared to untreated animals (n=14) and to a second control group treated only with DEN+PB (group DP, n=20). RESULTS - Fatty liver and cirrhosis developed in each animal in the DPC group (n=21) at week 8 and in a subgroup of these animals (n=11) hepatocellular carcinoma also appeared by week 16. No changes in bone parameters were observed in this group at week 8, but lower BMD, femoral length, cortical index and Fmax values were found at week 16 compared to the untreated controls or to the DP group (p<0.05 for both). In the DP group no fatty liver or cirrhosis was observed at any time. Femoral length and Fmax values were higher in the DP group at week 8 compared to the untreated controls (p<0.05 for both).At week 16, however, no difference could be detected. CONCLUSION - Experimentally induced liver cirrhosis and hepatocellular carcinoma are associated with growth inhibition and reduced bone mineral content, cortical index and mechanical resistance in growing rats.]

Ca&Bone

[Dear Colleagues and Readers!]

HORVÁTH CSABA

Ca&Bone

[Normal values of total body mineral content in the Hungarian female population]

LÁNYI Éva

[BEVEZETÉS - A magyar nők egész test ásványianyagtartalmának populációs normálértékeit kívántuk meghatározni. VIZSGÁLT SZEMÉLYEK ÉS MÓDSZEREK - Hétszáz egészséges, különböző életkorú nőt vizsgáltunk kettős energiájú röntgenfoton-abszorpciometriával. A vizsgálat során meghatároztuk az egész test tömegét (TBM), ásványianyag-tartalmát (TBMC), lágyrész-tartalmát (TSTM), zsírtartalmát (fat), az ásványi anyag és a zsírmentes szövet hányadosát (TBMC/LBM), valamint a különböző testtájak (fej, törzs, jobb és bal kar, lábak) ásványianyag- és lágyrész-tartalmát, továbbá a testsúlyból és a testmagasságból számolt testtömegindexet (BMI). EREDMÉNYEK - A magyar nők egész test ásványianyagtartalma a 20-30 év közötti korcsoportban a legmagasabb. Ez nem változik lényegesen a 46-50 éves korcsoportig, ahol jelentősebb csökkenés következik be. Az ásványianyagtartalom további nagyobb mérséklődése az 56-60 éves korcsoportban észlelhető, majd 60 éves kortól a csökkenés fokozatosan, nagyobb lépcsők nélkül következik be. Az egész test lágyrész-tartalma ellentétes változást mutat, mint az egész test ásványianyag-tartalma. A lágyrész-tartalom az életkorral párhuzamosan egyre nő, de ez a növekedés az egész test zsírtartalmának emelkedéséből származik. A testtájak ásványianyag-tartalmát összehasonlítva a végtagok ásványianyag-tartalmának fokozatos csökkenése észlelhető. Megfigyelhető a két kar közötti különbség, ez a domináns jobbkezességből adódik. A törzs ásványianyag-tartalma az életkor előrehaladtával folyamatosan csökken. KÖVETKEZTETÉSEK - Az egész test ásványianyagtartalmának vizsgálata egyre jelentősebb szerephez jut a szekunder osteoporosisok vizsgálatánál, így a populációs normálértékek meghatározásának különösen nagy a jelentősége.]

Ca&Bone

[Mechanotransduction, or the impact of physical activity on bone architecture]

MONDUK Péter, SZEKERES László

[It has long been known that, along with bone mineral content, bone strength is also fundamentally determined by its architecture.This architecture is shaped primarily by the forces that act on the bone, i.e., gravity and muscle traction conveyed by the tendons.Thus the bone acts as a kind of a mechanostat. The authors provide an overview of the literature on the systems that regulate mechanotransduction turning mechanical strain into bone texture. Regularly performed movements that provide a frequently changing axial load induce an extracellular fluid flow in the lacunar system of the bones.This flow induces prostaglandin synthesis in the osteocytes, which in turn inhibits the Receptor Activator of Nuclear factor κB (RANK) - RANK-Ligand (RANKL) mechanism through the secretion of osteoprotegerin by osteoblasts.This leads to osteoclast inhibition. Furthermore, leptin secretion by osteoblasts increases, which enhances osteoblast activation and inhibits the apoptosis of osteocytes and osteoblasts by both an autocrine and paracrine route. All these together act in the direction of bone formation. Based on the available evidence, the authors conclude that regular exercise results in an increased bone mass, better muscle strength and firmer balance, which leads to a decreased fracture risk.Thus, physical activity, through its beneficial effects on cardiac and bone health described above, contribute to the improvement of the quality of life.]

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Alexithymia is associated with cognitive impairment in patients with Parkinson’s disease

SENGUL Yildizhan, KOCAK Müge, CORAKCI Zeynep, SENGUL Serdar Hakan, USTUN Ismet

Cognitive dysfunction (CD) is a common non-motor symptom of Parkinson’s disease (PD). Alexithy­mia is a still poorly understood neuropsychiatric feature of PD. Cognitive impairment (especially visuospatial dysfunction and executive dysfunction) and alexithymia share com­mon pathology of neuroanatomical structures. We hypo­thesized that there must be a correlation between CD and alexithymia levels considering this relationship of neuroanatomy. Objective – The aim of this study was to evaluate the association between alexithymia and neurocognitive function in patients with PD. Thirty-five patients with PD were included in this study. The Toronto Alexithymia Scale–20 (TAS-20), Geriatric Depression Inventory (GDI) and a detailed neuropsychological evaluation were performed. Higher TAS-20 scores were negatively correlated with Wechsler Adult Intelligence Scale (WAIS) similarities test score (r =-0.71, p value 0.02), clock drawing test (CDT) scores (r=-0.72, p=0.02) and verbal fluency (VF) (r=-0.77, p<0.01). Difficulty identifying feelings subscale score was negatively correlated with CDT scores (r=-0.74, p=0.02), VF scores (r=-0.66, p=0.04), visual memory immediate recall (r=-0.74, p=0.01). VF scores were also correlated with difficulty describing feelings (DDF) scores (r=-0.66, p=0.04). There was a reverse relationship bet­ween WAIS similarities and DDF scores (r=-0.70, p=0.02), and externally oriented-thinking (r=-0.77,p<0.01). Executive function Z score was correlated with the mean TAS-20 score (r=-62, p=0.03) and DDF subscale score (r=-0.70, p=0.01) Alexithymia was found to be associated with poorer performance on visuospatial and executive function test results. We also found that alexithymia was significantly correlated with depressive symptoms. Presence of alexithymia should therefore warn the clinicians for co-existing CD.

Clinical Neuroscience

Late simultaneous carcinomatous meningitis, temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting with mono-symptomatic vertigo – a clinico-pathological case reporT

JARABIN András János, KLIVÉNYI Péter, TISZLAVICZ László, MOLNÁR Anna Fiona, GION Katalin, FÖLDESI Imre, KISS Geza Jozsef, ROVÓ László, BELLA Zsolt

Although vertigo is one of the most common complaints, intracranial malignant tumors rarely cause sudden asymmetry between the tone of the vestibular peripheries masquerading as a peripheral-like disorder. Here we report a case of simultaneous temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting as acute unilateral vestibular syndrome, due to the reawakening of a primary gastric signet ring cell carcinoma. Purpose – Our objective was to identify those pathophysiological steps that may explain the complex process of tumor reawakening, dissemination. The possible causes of vestibular asymmetry were also traced. A 56-year-old male patient’s interdisciplinary medical data had been retrospectively analyzed. Original clinical and pathological results have been collected and thoroughly reevaluated, then new histological staining and immunohistochemistry methods have been added to the diagnostic pool. During the autopsy the cerebrum and cerebellum was edematous. The apex of the left petrous bone was infiltrated and destructed by a tumor mass of 2x2 cm in size. Histological reexamination of the original gastric resection specimen slides revealed focal submucosal tumorous infiltration with a vascular invasion. By immunohistochemistry mainly single infiltrating tumor cells were observed with Cytokeratin 7 and Vimentin positivity and partial loss of E-cadherin staining. The subsequent histological examination of necropsy tissue specimens confirmed the disseminated, multi-organ microscopic tumorous invasion. Discussion – It has been recently reported that the expression of Vimentin and the loss of E-cadherin is significantly associated with advanced stage, lymph node metastasis, vascular and neural invasion and undifferentiated type with p<0.05 significance. As our patient was middle aged and had no immune-deficiency, the promoting factor of the reawakening of the primary GC malignant disease after a 9-year-long period of dormancy remained undiscovered. The organ-specific tropism explained by the “seed and soil” theory was unexpected, due to rare occurrence of gastric cancer to metastasize in the meninges given that only a minority of these cells would be capable of crossing the blood brain barrier. Patients with past malignancies and new onset of neurological symptoms should alert the physician to central nervous system involvement, and the appropriate, targeted diagnostic and therapeutic work-up should be established immediately. Targeted staining with specific antibodies is recommended. Recent studies on cell lines indicate that metformin strongly inhibits epithelial-mesenchymal transition of gastric cancer cells. Therefore, further studies need to be performed on cases positive for epithelial-mesenchymal transition.

Hypertension and nephrology

[About the care of patients with hyperuricaemia and gout]

[This consensus document is intended to provide guidance for the effective and efficient treatment of asymptomatic individuals with high uric acid levels and gout patients.]

Clinical Neuroscience

[What happens to vertiginous population after emission from the Emergency Department?]

MAIHOUB Stefani, MOLNÁR András, CSIKÓS András, KANIZSAI Péter, TAMÁS László, SZIRMAI Ágnes

[Background – Dizziness is one of the most frequent complaints when a patient is searching for medical care and resolution. This can be a problematic presentation in the emergency department, both from a diagnostic and a management standpoint. Purpose – The aim of our study is to clarify what happens to patients after leaving the emergency department. Methods – 879 patients were examined at the Semmel­weis University Emergency Department with vertigo and dizziness. We sent a questionnaire to these patients and we had 308 completed papers back (110 male, 198 female patients, mean age 61.8 ± 12.31 SD), which we further analyzed. Results – Based on the emergency department diagnosis we had the following results: central vestibular lesion (n = 71), dizziness or giddiness (n = 64) and BPPV (n = 51) were among the most frequent diagnosis. Clarification of the final post-examination diagnosis took several days (28.8%), and weeks (24.2%). It was also noticed that 24.02% of this population never received a proper diagnosis. Among the population only 80 patients (25.8%) got proper diagnosis of their complaints, which was supported by qualitative statistical analysis (Cohen Kappa test) result (κ = 0.560). Discussion – The correlation between our emergency department diagnosis and final diagnosis given to patients is low, a phenomenon that is also observable in other countries. Therefore, patient follow-up is an important issue, including the importance of neurotology and possibly neurological examination. Conclusion – Emergency diagnosis of vertigo is a great challenge, but despite of difficulties the targeted and quick case history and exact examination can evaluate the central or peripheral cause of the balance disorder. Therefore, to prevent declination of the quality of life the importance of further investigation is high.]

Clinical Neuroscience

Creutzfeldt-Jakob Disease: A single center experience and systemic analysis of cases in Turkey

USLU Ilgen Ferda, ELIF Gökçal, GÜRSOY Esra Azize, KOLUKISA Mehmet, YILDIZ Babacan Gulsen

We aimed to analyze the clinical, laboratory and neuroimaging findings in patients with sporadic Creutzfeldt-Jakob disease (CJD) in a single center as well as to review other published cases in Turkey. Between January 1st, 2014 and June 31st, 2017, all CJD cases were evaluated based on clinical findings, differential diagnosis, the previous misdiagnosis, electroencephalography (EEG), cerebrospinal fluid and cranial magnetic resonance imaging (MRI) findings in our center. All published cases in Turkey between 2005-2018 were also reviewed. In a total of 13 patients, progressive cognitive decline was the most common presenting symptom. Two patients had a diagnosis of Heidenhain variant, 1 patient had a diagnosis of Oppenheimer-Brownell variant. Seven patients (53.3%) had been misdiagnosed with depression, vascular dementia, normal pressure hydrocephalus or encephalitis. Eleven patients (87%) had typical MRI findings but only 5 of these were present at baseline. Asymmetrical high signal abnormalities on MRI were observed in 4 patients. Five patients (45.4%) had periodic spike wave complexes on EEG, all appeared during the follow-up. There were 74 published cases in Turkey bet­ween 2005 and 2018, with various clinical presentations. CJD has a variety of clinical features in our patient series as well as in cases reported in Turkey. Although progressive cognitive decline is the most common presenting symptom, unusual manifestations in early stages of the disease might cause misdiagnosis. Variant forms should be kept in mind in patients with isolated visual or cerebellar symptoms. MRI and EEG should be repeated during follow-up period if the clinical suspicion still exists.