Biomedical subjects

T Vanĕk

Publications and source records attributed to T Vanĕk.

7 recordsLinked to original sources

PubMed2004

Polyethylene glycol and abscisic acid improve maturation and regeneration of Panax ginseng somatic embryos.

Embryogenic culture was initiated from mature zygotic embryos of Panax ginseng. Multiple somatic embryos formed and proliferated on Murashige and Skoog medium supplemented with 2,4-dichlorophenoxyacetic acid (2.26 microM) and kinetin (0.046 microM). Mature as well as immature somatic embryos grew into plantlets lacking roots on the same media. Histomorphological analysis of somatic embryos treated with abscisic acid (ABA) and polyethylene glycol (PEG 4000) showed a slight improvement in the root meristem organization of torpedo-stage embryos (embryos were more compact and their cells exhibited a lower degree of vacuolation). Shoot regeneration of non-treated somatic embryos was 31% while that for somatic embryos treated with PEG 4000 and ABA was 70%. Moreover, 75% of plants regenerated from PEG- and ABA-treated embryos formed roots while plants from non-treated embryos did not form roots.

Abscisic Acid↗

PubMed2002

[Acute abdomen after cardiac surgery].

Acute abdomen after cardiosurgery accounts for a minor group of complications, however, they are associated with a high mortality and morbidity. In 2001 in the authors department 940 cardiac operations were performed. In four patients (0.43%) during the early postoperative period acute abdomen developed which called for urgent surgical intervention. Two patients died. Only early diagnosis and subsequent urgent laparotomy can have a positive impact on the prognosis of this group of patients.

Abdomen, Acute↗

PubMed2001

[Less invasive approaches in surgical treatment of aortic valve defects].

Longitudinal median sternotomy is even nowadays the standard approach to operations of the aortal valve. The authors summarize in the submitted paper their experience with operations in 60 patients where replacement of the aortal valve was performed either from a small transverse sternotomy in the second intercostal space or from upper ministernotomy from the jugulum to the fourth (third) intercostal space. One patient died. The low incidence of serious postoperative complications, the rapid rehabilitation of patients and short subsequent period of hospitalization indicate the advantages of this approach. The authors use at present upper ministernotomy as the surgical approach in the majority of operations of the aortal valve.

Adult↗

PubMed1999

Production of taxanes in a bioreactor by Taxus baccata cells.

In a suspension culture of Taxus baccata L. cultivated in a liquid medium according to Ericksson in a 6.21 bioreactor paclitaxel and 8 of its analogues were identified.

Antineoplastic Agents, Phytogenic↗

PubMed1998

[Aortocoronary bypass without extracorporeal circulation].

Extracorporeal circulation is nowadays part of the standard technique of aortocoronary reconstruction. The authors summarize in their paper their experience with operations in 45 patients where an aortocoronary bypass was made on the beating heart without the use of extracorporeal circulation. None of the patients died. The incidence of postoperative complications was low. Rapid rehabilitation of the patients and a shorter period of hospitalization makes this method an alternative standard technique of aortocoronary reconstruction.

Aged↗

PubMed1991

[Venomous snake bites].

Although venomous snakebites are not a serious world wide problem from the epidemiological point of view and are rare under our conditions, it is frequently a very serious and life threatening matter. The patient's prognosis depends among others also on early adequate and comprehensive therapeutic measures. The authors give a list of poisonous snakes and types of toxins and their action on man. Next they describe principles of first aid, specific and non-specific therapy of snakebites and complications resulting from intoxication. The article is supplemented by a special chapter on Viper berus and several clinical cases of snakebites by tropical poisonous snakes.

Humans↗

PubMed1989

[Malignant hyperthermia associated with epidural conduction anesthesia].

In a case-history the authors describe the development of malignant hyperthermia in conjunction with epidural anaesthesia. The development of this syndrome was arrested by early therapy with dantrolene and comprehensive treatment. A brief account of the character of this syndrome and its treatment is given.

Anesthesia, Epidural↗