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Molecular screening by polymerase chain reaction detects panleukopenia virus DNA in formalin-fixed hearts from cats with idiopathic cardiomyopathy and myocarditis.

Viral myocarditis has been suggested as an etiology for cardiomyopathy in several mammalian species. Myocarditis and idiopathic cardiomyopathy have been reported in the domestic cat, although a viral etiology has not been demonstrated. Because of the continuing interest in the potential relationship between viral myocarditis and cardiomyopathy, we evaluated hearts from cats with spontaneous, idiopathic cardiomyopathy for viral genomic material within myocytes by polymerase chain reaction, and for the presence of myocarditis by light microscopy. Thirty-one (31) formalin-fixed hearts from domestic cats who died of idiopathic cardiomyopathy were randomly selected from pathology archives. Seventeen (17) formalin-fixed hearts from healthy cats were similarly selected as normal controls. The polymerase chain reaction (PCR) was used to evaluate myocardial tissue for the presence of viral genome from feline panleukopenia virus, herpes virus, calici virus, and corona virus. Hearts were examined using light microscopy for histologic evidence of myocarditis according to the Dallas criteria. Panleukopenia virus was identified by PCR in 10 of 31 cats with cardiomyopathy but in none of the controls. Neither cardiomyopathic or control cats tested positive by PCR for herpes virus, calici virus, and corona virus. Myocarditis was detected by histologic examination in 18 of 31 cardiomyopathic cats and in none of 17 control cats. Myocarditis and or feline panleukopenia virus genome was detected in felines with idiopathic hypertrophic, dilated, and restrictive cardiomyopathy, suggesting a possible role of viral infection and inflammation in the pathogenesis of cardiomyopathy in this species.

Animals↗

PubMed2001

Bifidobacterium longum as a delivery system for gene therapy of chemically induced rat mammary tumors.

A fundamental obstacle in cancer gene therapy is the specific targeting of therapy directly to a solid tumor, and no systemic delivery system yet exists. A strain of domestic bacteria, Bifidobacterium longum, which is nonpathogenic and anaerobic, selectively localized to and proliferated in 7,12-dimethylbenz[a]anthracene-induced rat mammary tumors after systemic application. We further ascertained the tumor specificity of genetically engineered, as well as wild-type, Bifidobacterium longum. This is the first demonstration that Bifidobacterium longum can be utilized as a specific gene delivery vector for gene therapy on solid breast tumors.

9,10-Dimethyl-1,2-benzanthracene↗

PubMed1993

Occurrence of campylobacters in small domestic and laboratory animals.

Faeces samples from 156 healthy domestic pets and laboratory animals were examined for campylobacters with both a selective medium (Campylobacter Blood Free Medium; Oxoid, CM739) and selective filtration through a 0.65 micron pore size filter. Campylobacter spp. were isolated from 78 of the samples; filtration was the most effective method. Isolates were characterized by biochemical tests and DNA/DNA hybridization with whole chromosomal DNA from reference strains as probes. Campylobacter upsaliensis was the most common species isolated from cats (45 from 68 samples) whilst Camp. jejuni was more often isolated from dogs (19 from 56 samples). More attention should be paid to pets as a potential source of campylobacters capable of causing diarrhoea in human beings. Procedures other than those involving currently-used selective agents must be employed to efficiently detect all campylobacters.

Animals↗

PubMed2004

The Bengalese finch: a window on the behavioral neurobiology of birdsong syntax.

The Bengalese finch Lonchura striata var. domestica is a domesticated strain of a wild species, the white-rumped munia Lonchura striata of Southeast Asia. Bengalese finches have been domesticated in Japan for 240 years. Comparing their song syntax with that of their wild ancestors, we found that the domesticated strain has highly complex, conspicuous songs with finite-state syntax, while the wild ancestor sang very stereotyped linear songs. To examine the functional utility of the song complexity, we compared serum levels of estradiol and measured the amount of nesting materials carried into the nest by female birds that were stimulated with either the complex "domesticated" song or the simple wild-type song. In the females stimulated with complex songs the estradiol levels were significantly higher and the amount of nesting material carried was significantly greater. We then performed brain lesions in the song system to identify the neural substrates that are responsible for these differences in song behavior. In Bengalese finches lesions of NIf, a higher order song control nucleus, resulted in simplification of the complex song syntax. That is, the complex "domesticated" syntax changed into the simple wild-type syntax. Based on these data, we hypothesize that mutations in the song control nuclei have occurred that enabled complex song syntax and became fixed into the population of domesticated Bengalese finches through a process of indirect sexual selection.

Animals↗

PubMed1999

[Client anxiety from awareness of personal HIV risk and relation to taking HIV test at public health centers in Japan].

Clients taking HIV antibody tests at public health centers (PHCs) in Japan were surveyed in autumn of 1995 centered on 17 PHCs selected by a snow-ball sampling method in domestic PHCs. The anonymous self-administered questionnaires were given out by PHC's medical doctors or public health nurses after receiving informed consent of this survey's objectives following HIV post-test counseling. A total of 250 questionnaires were collected (71.8%). Valid questionnaires were 233 (67.0%) and 62.7% (146 people) were male, 37.3% (87 people) were female, with differences in mean age by sex being significant (p < .001). The greatest motivating factor for getting HIV testing was concerning secondary infection to partners and extreme anxiety relating to one's own possible infection. This motivating factor was greater than having experienced previous HIV infectious high-risk behavior (i.e. condomless sex). Repeat (more than twice) visitors totaled 49 (21.0%), with 75% having experienced HIV infectious high-risk behavior since the last HIV test. "Having being advised or having received from partners or friends" affected decision making to get tested. About half of subjects vacillated before coming to the PHC for taking anonymous the HIV antibody test. Through multiple-logistic regression analysis factors causing vacillation were: greater self-awareness of possibility of having HIV infection and the fact that HIV infected people must retire from their work (or studies) despite their current health condition being fine. While HIV medical/clinical treatment progress continues, the stigma toward HIV/AIDS and the resulting discrimination is not changing in terms of the general citizen's knowledge and attitudes. This result will likely curtail HIV antibody testing behavior.

AIDS Serodiagnosis↗

PubMed1999

Growth hormone deficiency in adults and clinical use of recombinant human growth hormone.

OBJECTIVE: To review the modern recognition of growth hormone deficiency (GHD) in adults and the beneficial effects of growth hormone (GH) treatment in such cases. DATA SOURCES AND METHODS: Most published original articles about GH and GHD in recent domestic and world wide related literatures were available. STUDY SELECTION: More than 65 originally identified articles were reviewed and 29 were selected that especially addressed the stated purpose. RESULTS: Treatment of GHD in adult human beings became an option following the development of rhGH and the numerous reports on the effect of rhGH therapy in such patients. The syndrome of GH deficiency in adults principally comprises abnormalities in body composition, cardiovascular risk factor, and psychological well-being. In comparison with normal individuals, these patients have increased total-body fat mass (particularly visceral adiposity), reduced muscle mass, reduced muscle strength exercise performance, and reduced bone mass. The psychological dysfunction comprises self-reported reduction in energy, mood, and sleep, along with objective reductions in marital and socioeconomic performance. CONCLUSION: The evidence that rhGH administration may be beneficial for the prevention, as well as treatment, of various clinical situations.

Animals↗

PubMed2002

The genus Bifidobacterium for cancer gene therapy.

A fundamental obstacle in cancer gene therapy is the specific targeting of therapy to solid tumor; as yet, no systemic delivery system exists. Bifidobacterium longum, a strain of domestic bacteria that is non-pathogenic and anaerobic, selectively localized to and proliferated in solid tumors after systemic application. We propose a novel approach to cancer gene therapy in which anaerobic bacteria of the genus B longum are used to achieve tumor-specific gene delivery and enzyme-prodrug therapy.

Animals↗

PubMed1986

Isolation of Campylobacter subsp. jejuni from Oriental and American cockroaches caught in kitchens and poultry houses in Vom, Nigeria.

A total of 690 adult cockroaches (Periplaneta americana (L.), the American cockroach, and Blatta orientalis (L.), the oriental cockroach) were captured alive within domestic kitchens and near poultry houses in Vom. Using selective media, their external surfaces and internal (gut) contents, after adequate decontamination of the external surfaces, were culturally examined for the presence of campylobacters. 4 isolates of Campylobacter subsp jejuni were made (0.5%); 3 from the gut contents and 1 from the external surface. Nocardia asteroides was isolated from the gut contents of a batch of ten cockroaches. The low isolation rate notwithstanding, our results suggest that cockroaches may be a potential vector of campylobacters from other sources to human food. The somewhat fortuitous isolation of Nocardia asteroides and its significance are discussed.

Animals↗

PubMed1994

[Culture techniques of Asarum sieboldii Miq].

Asarum sieboldii was domesticated in Sichuan, China. The rational planting density was selected according to this study. In the deep, loose and fertile soil, it grows well under semisunlight. Seedlings are raised in the seedling bed for two or three years, and then transplanted to the field, Harvest is started after three of four years of growth. Fertilizer is applied at the beginning of March and the beginning or middle of July.

Drugs, Chinese Herbal↗

PubMed1996

[Experimental study on treatment of type II respiratory failure with membrane artificial lung of polypropylene hollow fibres].

OBJECTIVE: To evaluate the effect of membrane artificial lung of polypropylene hollow fibres on treatment of type II respiratory failure. METHOD: Seven dogs with respiratory failure were randomly selected, arterial-venous bypass was set up. Domestic-made membrane artificial lung with polypropylene hollow fibres was installed to treat hypoxymia and hypercapnia in animals. Blood gas analyses were done at 30 min, 60 min and 90 minutes respectively. RESULT: The result showed that SO2 reached over 90%, PaO2 ascended from 7.6 +/- 1.3 to 13.6 +/- 1.8 kPa, PaCO2 descended from 11.6 +/- 0.6 to 7.2 +/- 0.5 kPa. CONCLUSIONS: The authors recommand the new instrument was recommanded for treating type II respiratory failure.

Animals↗

PubMed1999

Prevalence and risk association for Trichinella infection in domestic pigs in the northeastern United States.

To determine Trichinella infection in a selected group of farm raised pigs, 4078 pigs from 156 farms in New England and New Jersey, employing various management styles, were selected based on feed type (grain, regulated waste, non-regulated waste). The number of pigs bled from each farm were based on detecting infection assuming a 0.05 prevalence rate. Serum was tested by enzyme-linked immunoassay for antibodies to Trichinella spiralis. Seropositive pigs were tested by digestion at slaughter (when possible) for the presence of Trichinella larvae. Questionnaires completed at the time of serum collection were used to develop descriptive statistics on farms tested and to determine measures of association for risk factors for the presence of Trichinella-seropositive pigs. A total of 15 seropositive pigs on 10 farms were identified, representing a prevalence rate of 0.37% and a herd prevalence rate of 6.4%. A total of nine seropositive pigs and one suspect pig from six farms were tested by digestion; four pigs (representing three farms) harbored Trichinella larvae at densities of 0.003-0.021 larvae per gram (LPG) of tissue; no larvae were found in six pigs. Risk factors which were significantly associated with seropositivity included access of pigs to live wildlife and wildlife carcasses on the farm; waste feeding had no statistically significant association with seropositivity for Trichinella infection in pigs. The presence of Trichinella infection in pigs in New England and New Jersey has declined during the past 12 years when compared with previous prevalence studies.

Animal Feed↗

PubMed1992

Serological survey for Lyme disease in domestic dogs and white-tailed deer from Oklahoma.

Sera from 223 randomly selected dogs and 489 white-tailed deer (Odocoileus virginianus) were tested for antibodies to Borrelia burgdorferi using an indirect kinetic ELISA. Dog samples were obtained in 1989 whereas deer samples were obtained between 1975 and 1990. Ten known negatives and two known positives from each group were run on each plate as controls. Samples showing mean mOD values above the mean of negatives + 3 SD were considered positive. Twenty-six dog (11.7%) and 22 deer (4.5%) samples were positive. Deer reactors were first detected among 1978 samples. Reactive deer were from central and eastern Oklahoma whereas reactive dogs were mostly from central Oklahoma. Confirmed human cases between 1986 and 1989 were distributed throughout the state, thus showing no correlation with either deer or dog results.

Animals↗

PubMed2000

[Identification of nucleolar antigen in different types of cells using domestic monoclonal antibodies].

Murine hybridoma 3C9 producing BCA-PC monoclonal antibodies and selectively staining the nucleoli in various cells, most intensely in actively proliferating cell cultures, was obtained by somatic hybridization of cells. BCA-PC MAb belong to IgM. As a rule, IgM antibodies are virtually unavailable for intracellular antigens, and therefore a special method has been developed for fixation and performance of indirect immunofluorescence with BCA-PC. By its molecular weight (37 and 43 kD) and distribution in the cellular nucleus, the antigen detected by BCA-PC resembles the nucleolar protein B23 located in the nucleolar granules. The content of B23 increases with malignant degeneration of cells and during cell proliferation. It is therefore believed that the new MAbs will help characterize the proliferative status of cells which determines the malignancy of a pathological process.

Animals↗

PubMed1981

Caprine arthritis-encephalitis: clinical features and presence of antibody in selected goat populations.

Features of caprine arthritis-encephalitis, a retrovirus disease of domestic goats, were studied in 60 goats over a 10-year period. The rate of progression and the severity of the disease process were highly variable within and among animals, but the most salient features were chronically swollen joints and bursae, lameness, weight loss, poor coat, mineralization of soft tissue, and death. Of 1,160 goat serum samples from 24 states tested by the immunodiffusion technique, 81% were positive for antibody to caprine arthritis-encephalitis virus antigens.

Animals↗

PubMed1975

The normal electrocardiogram of the domestic pony.

Twelve-lead electrocardiograms (ECGs) were recorded from 52 resting mature female domestic grade ponies. Evaluation of the 50 ECG's ultimately selected for analysis revealed numerous differences from accepted normal values of horses. Among these differences are shorter durations of the P and QRS complexes as well as P-R and Q-T intervals and a lower amplitude of the P wave. Pony ECG's displayed a lower incidence of wandering pacemaker and complete absence of second degree atrioventricular block, in contrast to the relatively routine occurrence of these phenomena in the horse. The existence of significant differences between the ECG of the pony and horse must be recognized and considered in future clinical and research applications of electrocardiography in the domestic pony.

Animals↗

PubMed1990

Seasonal cycles in the blood plasma concentration of FSH, inhibin and testosterone, and testicular size in rams of wild, feral and domesticated breeds of sheep.

Seasonal cycles in testicular activity in rams were monitored in groups of wild (mouflon), feral (Soay) and domesticated breeds of sheep (Shetland, Blackface, Herdwick, Norfolk, Wiltshire, Portland and Merino) living outdoors near Edinburgh (56 degrees N). The changes in the blood plasma concentrations of FSH, inhibin and testosterone, and the diameter of the testis were measured every half calendar month from 1 to 3 years of age. There were significant differences between breeds in the magnitude and timing of the seasonal reproductive cycle. In the mouflon rams, the seasonal changes were very pronounced with a 6-15-fold increase in the plasma concentrations of FSH, inhibin and testosterone from summer to autumn, and a late peak in testicular diameter in October. In the Soay rams and most of the domesticated breeds, the seasonal increase in the reproductive hormones occurred 1-2 months earlier with the peak in testicular size in September or October. In the two southern breeds (Portland and Merino), the early onset of testicular activity was more extreme with the seasonal maximum in August. In cross-bred rams, produced by mating Soay ewes (highly seasonal breed) with Portland or Merino rams (less seasonal breeds), there was a seasonal reproductive cycle that was intermediate compared to that of the parents. A comparison between all 11 breeds showed a significant correlation between the timing of the seasonal cycle in plasma FSH concentration and testicular diameter (time of peak FSH vs testis, r = 0.95). The overall results in the rams are consistent with a primary role of FSH in dictating the seasonal cycle in testicular size and the secretion of inhibin. The earlier seasonal onset in the testicular cycle in the southern breeds of domesticated sheep, and the differences from the wild type, are taken to represent the effects of genetic selection for a longer mating season.

Animals↗

PubMed1996

The immunology of domestic animals: its present and future.

Veterinary immunology, defined as the immunology of domestic and wild animals having economical or sentimental value to man, provides both practical knowledge that is useful to animal husbandry, and new insights into fundamental immunology. Defining new immunologically based diagnostic tools and immunotherapeutic approaches, including vaccine strategies, obviously still represents important applied objectives. Resistance of domestic animals to disease might also be improved through genetic selection of animals for immunological traits. New contributions to fundamental immunology will arise from so-called 'Immunological opportunities in farm animals' (M. Parkhouse) such as: the ileal Peyer's patch of large animals as an accessible model for studying B cell differentiation; the significance of a high number of gamma delta T cells in ungulates and of double positive CD4+ CD8+ T cells; the possible manipulation of the immune system at a regional level in the living animal by cannulating lymphatic vessels; the use of spontaneous immunodeficiency or autoimmune diseases of animals as models for human clinical research. The fulfillment of these objectives benefits from the flow of information and communications among immunologists working on domestic animals. In addition to national specialized groups, the Veterinary Immunology Committee of the International Union of Immunological Societies (VIC-IUIS) was created to facilitate communication on veterinary immunology; to establish 'official' links between veterinary immunology and the rest of the immunologists' community; and to support the organization of international workshops on domestic animal immunological reagents.

Allergy and Immunology↗

PubMed2025

Genetic basis and role of exotic accessions in cultivated cotton fiber quality improvement.

Exotic Gossypium accessions still harbor QTL‑validated alleles that, combined with CRISPR pyramiding and genomic selection, can break the entrenched fiber length-strength trade‑off. Cotton's four independent domestications twice in diploids and twice in allotetraploids offer a natural experiment in fiber improvement. Synthesizing three decades of data, we chart how polyploidy, selection and modern breeding have repeatedly reshaped the Gossypium genome. More than 15,000 quantitative trait locus (QTL) and genome wide association mapping studies (GWAS) hits converge on a handful of chromosomal "hotspots"; new MAGIC, NAM, NIL and long-read resources now narrow these peaks to < 200 kb, resolving causal genes such as GhHOX3, GhZF14 and GhMYB7. Multi-omics evidence links auxin, ethylene, gibberellin, brassinosteroid and strigolactone signaling to HDZIP IV, MYB, bHLH/HLH and ERF networks that drive fiber initiation, extreme cell elongation and cellulose deposition. Population genomics shows that ~ 40% of favorable fiber alleles are fixed in elite Gossypium hirsutum, yet wild diploids and landraces still harbor variants that could break the length strength trade-off. We propose a three-step roadmap genomic selection, CRISPR gene pyramiding and accelerated introgression to expand cotton's genetic base and deliver fibers suited to sustainable textile demands.

Gossypium↗