BACKGROUND Benzodiazepines have a direct bronchodilatory effect. Methacholine is a non-selective muscarinic receptor agonist causing bronchoconstriction. AIM To examine the effects of inhaled benzodiazepines, modulating bronchoconstriction induced by methacholine in patients with asthma. PATIENTS AND METHODS Twelve patients with well controlled asthma were studied. On the first day, after determining the initial values of pulmonary function, a dose response curve was carried out with progressive doses of methacholine. After the last dose, when at least a 20% drop of the initial forced expiratory volume in the first second (FEV1) was achieved, vital capacity (VC) and FEV1 were measured at 7, 15 and 30 minutes after provocation. On the second day a diazepam aerosol was inhaled by the patients prior to the same protocol with methacholine. RESULTS In the first day of testing, methacholine inhalation (6 mg/mL) led to a significant drop in FEV1 from 2.98 to 1.69 L. On the second day of study, in the same patients, previous inhalation with diazepam reduced the changes of FEV1 after inhalation of methacholine. This parameter decreased from 2.48 to 2.21 L. CONCLUSIONS Inhalation of benzodiazepines reduce bronchoconstriction after a methacholine challenge in patients with asthma.

BACKGROUND/AIM The cell line C6 is a continuous cell line of rat glioma and, as a transplantable line, is frequently used for induction into in vivo model of primary brain tumor. It is believed that, pursuant to its histological traits and biological behavior, this experimental tumor corresponds to human anaplastic astrocytoma of grade II/III, which is characterized by proliferative and invasive potency, and marked cell differentiation. The aim of this study was to determine macroscopic analysis of rat brain with implanted tumor during tumorigenesis, histological features of tumor cells of induced brain tumor and markers of proliferation (proliferation cell nuclear antigen - PCNA, cytokeratin - CK 19) and differentiation (glial fibrillary acidic protein -GFAP) in rat brain with implanted tumor. METHODS To determine histological structure of the brain with implanted C6 cells, we used brain sections stained for hematoxylin-eosin or kresyl violet, whereas other sections were immunohistochemically stained for GFAP, CK 19 and PCNA. RESULTS A statistically significant difference in weights of the left and right brain hemispheres with implanted tumors during tumorigenesis in as soon as 7 days from the day of inducing tumors was revealed. The tumor was of cellular type, with distinct pleomorphism of cells and frequent hyperchromasia of the nucleus. Immunohistochemical staining for PCNA revealed a significant number of positive cells on the days 7, 14 and 21 day following the implantation of C6 cells. CK 19 positive cells were present in both brain hemispheres, and numerous GFAP positive astrocytes were found around the puncture lesion. CONCLUSIONS Within the experimental conditions of the present research, C6 glioma did not demonstrate any relevant deviations concerning development, clinical symptomatology and macroscopic anatomy relative to those already described in the literature.

The nature of mental disorders, the attitudes and prejudices of the social community towards psychiatric patients, the behavior and treatment of mental patients, all bring about numerous dilemmas and prejudices. When a patient is diagnosed with a mental disorder, he may suffer restrictions in the field of general human rights. However, the biggest problems in clinical practice occur in the treatment of patients who, besides their mental disorder also have a somatic disease. We report a 56-years-old female with a severe renal failure who refused to undergo dialysis. Following the patient's refusal to sign an informed consent, a psychiatrist was called in for consultation and diagnosed an acute psychotic reaction. To manage the delusions and acute psychotic reactions, risperidone in the dose of 2 mg was started. After 22 days, the patient still had marked psychotic symptoms. A psychiatrist, a nephrologist and an anesthesiologist, in the presence of the spouse on the grounds of her life-threatening condition, decided to apply the necessary medical procedures even without the patient's consent. A day after the start of dialysis the patient still had delusional ideas, but without the presence of anxiety, and the patient no longer offered resistance to dialysis. Four days after the first dialysis, the patient was calm, had vague memories about the entire previous period, and signed the informed consent concerning her further treatment.

Summary This paper describes the utility of flexible bronchoscopy in a sick child diagnosed with dermatomyositis, celiac disease. Mucus plug is a common medical cause of lung atelectasis. Due to deteriorated respiratory condition, the child was highly febrile, cyanotic, liver 6-7 cm, palpable under the right rib arch. We described a child with dermatomyositis and lung atelectasis. Atelectasis causes difficulty breathing and decreased oxygen saturation, so the child was intubated and put on a complete mechanical ventilation. Before intubation, the number of respirations exceeded 40/min, O2 saturation on the pulse oximeter fell under 73%. Pulse rate was 173/min, blood pressure 94/37 mmHg. Before intubation, the gas analysis of blood showed: Ph below 7.30 and pCO2 9 kPa, pO2 in the blood below 4.9 kPa. After flexible bronchoscopy was performed, therapeutic and diagnostic, lung re-expansion was enabled. After performed bronchoalveolar lavage with 0.9% NaCL 1 ml per kg TT, twice repeated, corticosteroids were introduced at the site of the changed mucus membrane. Mechanical ventilation parameters: Fio2, number of respirations and inspiratory pressure decreased. Values of gas analysis: ph improvement above 7.30 Pco2 3.6kPa, pO2 in the blood 11. O2 saturation 95%, pulse rate 120/min. The five-year-old child patient was extubated five days after bronchoscopy and was transferred to the standard Pulmonology Ward. Blood derivatives were obtained on several occasions. The condition improved, methotrexat therapy was introduced, with corticosteroids once a week, 3x40 mg i.v., on other week days Pronison 5 mg 4x1. Sažetak Ovaj rad ukazuje na značaj fleksibilne bronhoskopije kod obolelog deteta sa dijagnozom dermatomyositis, coeliakia. Sluzni čep u bronhu je čest medicinski uzrok atelektaze kod ovih bolesnika. Usled pogoršanog respiratornog stanja, obolela deca mogu imati visoku temperaturu, cijanozu, uvećanu jetru do 6- 7 cm. Prikazujemo dete sa dermatomiozitisom, koje je imalo atelektazu pluća. Atelektaza pluća uzrokuje otežano disanje, smanjenje saturacije, zbog čega je obolelo dete intubirano i priključeno na totalnu mehaničku ventilaciju. Broj respiracija pre intubacije prelazio je 40 min, saturacija oksigena saturacija na oksimetru pulsa pada ispod 73%. Puls 173/min, krvni pritisak 94/37 mmHg. Pre intubacije vrednosti plinova u krvi - pH obično su ispod 7,30 i pCO2 9 kPa, pO2 u krvi ispod 4,9 kPa. Posle izvedene fleksibilne bronhoskopije, dijagnostičke i terapijske sa bronhoalveolarnom lavažom, nastupa reekspanzija pluća. Posle izvedene bronhoalveolarne lavaže sa 0,9% NaCL 1 ml/kg TT, dva puta ponovljene, uvedeni su kortikosteroidi na mestu promene na sluznici obolelog bronha. Parametri mehaničke ventilacije: FiO2, smanjen broj respiracija i vrednosti inspiratornog pritiska. Vrednosti pH arterijske krvi se popravljaju iznad 7,30 Pco2 3,6 kPa, pO2 u krvi 11. Saturacija kiseonikom 95%, puls 120/min. Petogodišnja devojčica je pet dana kasnije ekstubirana i premeštena na standardno odeljenje pulmologije. Krvni derivati su uključeni u nekoliko navrata. Stanje se poboljšalo, tako da je methotreksat uveden u terapiju, sa kortikosteroidima jednom sedmično, 3x40 mg i.v., a drugim danima u sedmici Pronison 5 mg 4x1.