BACKGROUND The objective of the study was to investigate the effects of in vitro zinc sulphate additive to semen extender on sperm parameters (progressive motility, viability, membrane integrity and DNA stability) after cryopreservation. MATERIALS AND METHODS In this Prospective longitudinal laboratory study, semen samples of 5 buffalo bulls of 3-5 years old were collected at 5 different occa...

The effect of ulcérationof the urinary bladder on bladder carcinogenesis induced by W-[4-(5-nitro-2-furyl)-2-thiazolyl]formamide (FANFT) or sodium saccharin was evaluated in 5week-old F344 rats which were all killed 2 years after the start of the experiment. The results indicate that long-term feeding of sodium saccharin, a nonmutagen, appears to be capable of inducing bladder tumors if admini...

Two-year-old 'Ambersweet' ( Citrus reticulata Blanco X [ C poroc/f'siMacf. X C. reticulata]) X midseason orange, C. s/nensfs(L.) Osb. trees on three rootstocks, sour orange (C. aurantium L), Cleopatra mandarin (C. reticulate), and Carrizo citrange (C. sinensisX Poncirus trifoliate* (L) Raf.) grow ing in 15-liter pots were exposed to cold-hardening regimes in controlled-temperature rooms and fre...

Monospecific rabbit antisera to rat pancreas cholesterol esterase were employed in the unlabeled antibody enzyme method of immunocytochemistry in combination with the horseradish peroxidase-antihorseradish peroxidase complex to localize this pancreatic enzyme within the wall of rat small intestine. Intestinal rings were fixed in paraformaldehyde with satisfactory preservation of structure and r...

A monoclonal antibody (MoAb) K15 (IgG3) was obtained by fusion between SP2/0, mouse myeloma cell line and spleen cells from BC3Fl mice immunized with K562. a chronic myelocytic leukemia (CML) blastic crisis cell line. MoAb Kl5 precipitated a 21 kilodalton (KD) polypeptide in reduced condition. It stained lymphocytes, monocytes, eosinophiles and small bone marrow cells, but not neutrophiles, pla...

Equilibrium-line a ltitudes on the White Glacier, Axe! H eiberg Island, a nd the north-west sector of the Devon Ice Cap a re shown to be closely related to mean July freezinglevel h eights at nearby upper-air weather stations. An inverse relationship between July freezing-level heights a nd mass balance on the Devon I ce Cap is also sh own. R easons for such correlations are suggested and som e...

Transit trip planners are now found on most transit authority websites. This feature gives transit users a full itinerary from a point of origin to a destination. The web server on which the trip planner is installed usually stores usage logs on a daily basis. Log files contain data on origins, destinations, calculated paths, and other website entries. The main purpose of this article is to det...

Lymph nodes draining the progressively growing, weakly immunogenic, MCA 105 sarcoma contained tumor-sensitized but not fully func tional pre-effector T-cells. These cells could further differentiate to acquire full antitumor effector function for adoptive therapy in an estab lished in vitro sensitizaron (IVS) procedure. In this study, we utilized selective depletion with antibodies of lymphocyt...

Lymphocytic infiltrates of BALB/c 14 hyperplastic alveolar nodule (HAN) have elevated natural killer (NK) activity, which correlates posi tively with the progression of C4 HAN to tumor. C4 HAN produces an infectious mouse mammary tumor virus, MMTV(C4), which encodes a superantigen that activates and deletes T-cells with the Vß2segment in the T-cell receptor. In this report, NK activation by bo...