A new strategy for selective nodal dissection in non-small cell lung cancer (NSCLC) patients according to the segment of primary tumor was explored. Data on 504 patients with NSCLC of less than 5 cm, histologically revealed to be N2 disease after thoracotomy, were analyzed. In right upper lobe (RUL) tumor, when the pretracheal node was negative, the incidence of subcarinal involvement was 3.8%....

Atrioventricular nodal reentry tachycardia (AVNRT) represents one of the most common arrhythmias in emergency cardiology. It can occur in patients of all age groups and may occur in presence or absence of heart disease including coronary artery disease. During the periods of AVNRT, it is not uncommon to see ST segment depression and T wave changes. These, generally, persist transiently in the p...

Andrographis lineata Nees (Acanthaceae) is an endemic herb rich in flavonoids and diterpenoids which have pharmaceutical importance. Seedling explants source has not been studied for micropropagation and hence the present investigation has been taken up. An efficient protocol was developed for aseptic seed germination and in vitro shoot multiplication from different aseptic seedling explants. 3...

Neuronal excitability is likely to be regulated by the site of action potential initiation, the location on a neuron that crosses threshold first. Although initiation is axonal in many neurons, in Purkinje cells, somatic conductances can generate spontaneous action potentials, suggesting that the perisomatic region (soma and/or initial segment) contributes to spike initiation and may regulate f...

A transmission matrix (also known as four pole) model is presented of a duct with anechoic terminations and a quarter-wave-tube, where each duct segment has a linear temperature gradient. The results from simulations conducted using the mathematical model show good agreement with results from finite element simulations using Ansys. Expressions are derived for the four pole analysis method that ...

Saltatory conduction requires high-density accumulation of Na(+) channels at the nodes of Ranvier. Nodal Na(+) channel clustering in the peripheral nervous system is regulated by myelinating Schwann cells through unknown mechanisms. During development, Na(+) channels are first clustered at heminodes that border each myelin segment, and later in the mature nodes that are formed by the fusion of ...

Citrullus colocynthis, belonging to the family of cucurbitaceae. It is a xerophytic desert plant, widely used for its medicinal purpose. In tribal areas it is used for the treatment of constipation, oedema, bacterial infection, cancer, diabetes and abortifacient. Present study is based on developing a protocol for plantlet regeneration from the nodal segment. The sterilized explants were inocul...