Lege Artis Medicinae

[Colonizing the Body – Sways of Civilization]

ZSINKÓ-SZABÓ Zoltán, LÁZÁR Imre, TÚRY Ferenc

MARCH 22, 2012

Lege Artis Medicinae - 2012;22(03)

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Lege Artis Medicinae

[On Charon’s boat]

NAGY Zsuzsanna

Lege Artis Medicinae

[Bacterial contamination and irritable bowel syndrome]

NOVÁK János

[Irritable bowel syndrome (IBS) is one of the most common gastrointestinal condition, which affects 10-15% of adults in developed countries. Recent observations have raised the possibility that disturbances in the gut microbiota and/or the accompanying low-grade inflammatory state might contribute to the etiology and symptomatology of irritable bowel syndrome. Some studies indicate that small intestinal bacterial overgrowth (SIBO), as confirmed by hydrogen breath tests (HBT), is more prevalent in patients with irritable bowel syndrome than in matched controls without IBS. Although the data are conflicting, this observation has led to the hypothesis that bacterial contamination was the primary cause of IBS. As a consequence of this hypothesis, a lot of therapeutic options have found their way into the armamentarium of those who treat patients with IBS. These agents include probiotics, prebiotics, antibiotics and anti-inflammatory agents. This paper describes the various mechanisms by which changes in the gut flora might contribute to IBS and also discusses the efficacy and safety of antibiotic therapies, especially rifaximin, for treating IBS/SIBO symptoms.]

Lege Artis Medicinae

[Epidemiological surveillance systems used by international organisations in military crisis management operations]

KOPCSÓ István, KISS Antal Zsolt

[Facing new challenges and growing requirements, the renewal and adjustment of doctrines, methods and technology is an indispensable progressive need for modern militaries. In order to achieve the maximal protection of troops and conservation of fighting strength, innovation is continuous and has greatly accelerated in the whole spectrum of Force Health Protection. Owing to the development of technology, portable capabilities that had been available only in the hinterland have become available in the military medical support area. Utilising mobile information technology solutions, the continuous, real-time information flow between the tactical level medical units and the higher level medical analysts and decision makers has become technically feasible, which results in a significant widening of epidemiological surveillance capabilities as well. We discuss the current challenges of expeditionary- type military operations and their general epidemiological aspects and the morbidity reporting and monitoring systems used in international military missions. Furthermore, we overview the milestones of the development of the NATO near-real-time epidemiological surveillance system, the NATO Deployment Health Surveillance Capability, which functions as a branch of the Budapestbased multinational NATO Centre of Excellence for Military Medicine.]

Lege Artis Medicinae

[Clinical aspects of ischaemic bowel disease]

DEMETER Pál

[Decreased blood flow through the intestines leads to mesenteric ischaemia, which is characterised by cellular damage due to the lack of oxygen and nutrients. Extensive collateralisation between splanchnic vessels serves as a protective mechanism against ischaemia. Intestinal ischaemia can be classified on the basis of its timing, location and the vessels involved. Acute mesenteric ischaemia can result from arterial embolisation, arterial or venous thrombosis, or vasoconstriction secondary to systemic circulation disorder associated with hypovolaemia. Chronic mesenteric ischaemia develops as a consequence of partial or complete occlusion of splanchnic vessels. Colonic ischaemia is mainly caused by a limited circulation disorder of the inferior mesenteric artery. Mortality rates for the various forms of acute mesenteric ischaemia are different. However, early diagnosis before bowel infarction might improve survival. This paper summarises the cilical aspects, diagnosis and therapeutic options of intestinal ischaemia.]

Lege Artis Medicinae

[The new British recommendations for the treatment of lower back pain on the basis of the new NICE guidelines - comparison with the Hungarian therapeutic practice]

VERECKEI Edit, PALKONYAI Éva, SIMONCSICS Eszter, APÁTHY Ágnes, TEMESVÁRI I. Péter

[The new NICE guidelines on lower back pain emphasise the importance of clinical assessment. Radiological imaging methods are used primarily to exclude severe diseases, such as tumour, infection, trauma or inflammation. It’s crucial to inform patients and encourage them to use self-management and stay active. Pain management is guided by the analgesic ladder. A complex physical and psychological treatment is used, which involves a structured exercise programme, manual therapy and acupuncture, taking into account the preferences of the patient. Depending on the aetiology, surgical intervention should be considered in therapy-resistant cases. Finally, the authors compare the above guidelines with the Hungarian practice in this field.]

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[The role of sleep in the relational memory processes ]

CSÁBI Eszter, ZÁMBÓ Ágnes, PROKECZ Lídia

[A growing body of evidence suggests that sleep plays an essential role in the consolidation of different memory systems, but less is known about the beneficial effect of sleep on relational memory processes and the recognition of emotional facial expressions, however, it is a fundamental cognitive skill in human everyday life. Thus, the study aims to investigate the effect of timing of learning and the role of sleep in relational memory processes. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. 84 young adults (average age: 22.36 (SD: 3.22), 21 male/63 female) participated in our study, divided into two groups: evening group and morning group indicating the time of learning. We used the face-name task to measure relational memory and facial expression recognition. There were two sessions for both groups: the immediate testing phase and the delayed retesting phase, separated by 24 hours. Our results suggest that the timing of learning and sleep plays an important role in the stabilizing process of memory representation to resist against forgetting.]

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Coexistence of cervical vertebral scalloping, pedicle deficiencies and dural ectasia in type I neurofibromatosis

YALDIZ Mahizer

Neurofibromatosis type 1 (NF-1; also known as Von Recklinghausen’s disease) is a common autosomal dominant disease that occurs in the general population at the rate of 1 in 3000. Many NF-1 patients present with spinal malformations. A 54-year-old female patient was admitted to the Outpatient Clinic of Dermatology with gradually increasing swelling and spots on the body that had been present for a long period of time. Cervical vertebral scalloping, pedicle deficiencies and dural ectasia (DE) were also detected. She was diagnosed with NF-1. NF-1 is routinely seen in dermatology practice. Coexistence of NF-1 with vertebral scalloping, pedicle deficiencies and DE rarely occurs. Our case is the second reported instance in the literature of NF-1 with a spinal anomaly in the cervical region, and the first reported instance of the coexistence of NF-1 with cervical vertebral scalloping, pedicle deficiencies and DE.

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[The possibilities of pharmacological treatment of obesity]

PADOS Gyula, SIMONYI Gábor, BEDROS J. Róbert

[There have been attempts to treat obesity with medicines for nearly 100 years, since the discovery of ephedrine. For decades amphetamine derivates and agents stimulating or inhibiting the release of noradrenaline and dopamine have been applied. However, most of theses drugs had to be gradually withdrawn, due to their adverse effects on the cardiovascular and central nervous system or their sympaticotonic effect. Dexfenfluramine (Isolipan), which was introduced in the 90s, did not have such side effects, but it turned out to potentially cause valvular heart disease. Finally, sibutramin (Reductil) was introduced, which again had to be withdrawn in 2010 due to its hypertensive and cardiovascular side effects. After all, we were left without any appetite-suppressant drugs. Orlistat therapy, (Xenical 120 mg, alli 60 mg - OTC), which inhibits the absorption of fat, can eliminate only 30% of the consumed food’s fat content, at the price of gastrointestinal side effects. The latest result of research carried out wordwide is that in 2012 the FDA approved commercial distribution of the selective 5HT2/c serotonin agonist lorcaserin (Belviq), which enhances satiety, in the USA. Unfortunately, in 2013 the EMEA temporarily postponed the lauch of this drug, until certain adverse effects are excluded. For diabetic patients, the GLP-1 agonist exenatid and the GLP-analog liraglutid, which can also reduce body weight, are available in the form of injections.]

Ca&Bone

[Bone metabolism and body mass index in postmenopausal women]

TÁRCZY Csaba, TOLDY Erzsébet, SZERB János, VARGA László

[INTRODUCTION - In addition to several other causes constitutional factors play an important role in the development of osteoporosis.Various aspects of bone metabolism were examined to explain the differences in bone density between women with low and high body mass index (BMI). PATIENTS AND METHOD - One hundred and ninetytwo postmenopausal women were included in the study. Bone density was measured by forearm densitometry.To assess bone formation, serum osteocalcin levels were measured, while the rate of bone absorption was estimated from C-terminal telopeptide levels of collagen type I measured in urine and blood. RESULTS - The prevalence of osteoporosis was higher in women with low BMI than in those with normal or higher BMI. Bone metabolism - both formation and absorption - was increased in both groups, however, in women with low BMI this increase was more pronounced and bone metabolism tended to be shifted to absorption compared to patients with normal or higher BMI. CONCLUSION - Postmenopausal lean women have accelerated bone metabolism compared to obese women. This fact and the shift to absorption may be the main reasons for the higher frequency of osteoporosis found by densitometry in women with low BMI than in those with higher BMI.]

Clinical Neuroscience

Vitreous humor diffusion measurements from diffusionweighted imaging in idiopathic intracranial hypertension

CAGLI Bekir, TUNCEL Alpaslan Sedat, YILMAZ Erdem, TEKATAS Aslan, ERMIS Veli

Background - Idiopathic intracranial hypertension is a disease with uncertain etiology. It is not caused by an intracranial mass lesion or hydrocephalus and is characterized by abnormal elevation of intracranial pressure and normal composition of the cerebrospinal fluid. The orbita and intracranial area are closely related anatomically. Elevated intracranial pressure can be transmitted to the orbita through the cerebrospinal fluid around the optic nerve sheath changes at the vitreous humor on diffusion-weighted imaging have not been systemically studied in idiopathic intracranial hypertension. Purpose - The purpose of this study was to investigate diffusion changes in the vitreous humor in patients with intracranial hypertension. Methods - In this retrospective study, 25 patients with papilledema and who had been definitively diagnosed with idiopathic intracranial hypertension and 20 control participants were evaluated. Control subjects and patients were scanned with a 1.5 Tesla magnetic resonance imaging. Apparent diffusion coefficient maps were obtained from diffusion-weighted imaging with a b value of 1000 s/mm2 and apparent diffusion coefficient values were automatically calculated. These images were obtained by a radiologist who was blinded to the details of the study for center of each vitreous humor and the body of lateral ventricle. The mean apparent diffusion coefficient values of each vitreous humor and the body of the lateral ventricle were calculated for each group (control group and patients) and quantitative comparisons were performed. Results - There were no statistically significant differences in mean apparent diffusion coefficient values of the right vitreous humor, left vitreous humor and the body of the lateral ventricle between the patients with idiopathic intracranial hypertension and the control group (p=0.766, p=0.864, p=0.576, respectively). Discussion - Vitreous humor is a closed system and has no direct relationship with the cerebrospinal fluid or cerebral tissue and although morphological changes occur in the orbital structures, including the optic disk and optic nerve in idiopathic intracranial hypertension, the indirect effects of these changes on the vitreous humor may be too subtle to measure. Conclusion - We did not find a significant difference in the mean apparent diffusion coefficient value of the vitreous humor between the patients with idiopathic intracranial hypertension and the control group. However, future studies will be necessary to determine if changes in the vitreous humor can be used to diagnose intracranial hypertension.