The comment by Myers-Smith and Myers focuses on three main points: (i) the lack of a mechanistic explanation for climate-selection relationships, (ii) the appropriateness of the climate data used in ...our analysis, and (iii) our focus on estimating climate-selection relationships across (rather than within) taxonomic groups. We address these critiques in our response.
Ventrodorsal pelvic radiographs were made of 32 adult dogs under general anaesthesia. The hip joints were evaluated according to the severity of osteoarthritic changes graded as 0, 1, 2 or 3. The ...dogs were euthanased, the hip joints opened and the ligamentum capitis femoris dissected out in toto. The volume of each ligament was determined using a water displacement technique and the mean volume compared to the four radiographic grades of osteoarthritis. There was an inverse correlation (r = -0.75) between the mean volume of the ligamentum capitis femoris and the increasing severity of osteoarthritis as assessed by radiography. The results confirmed the crucial role of radiography in the clinical evaluation of hip dysplasia and osteoarthritis in the adult dog. Assessment of the volume of the ligamentum capitis femoris revealed that it is an important tool for research in canine hip dysplasia and osteoarthritis.
Three domestic short-haired cats with a history of anorexia and loss of body condition had high rectal temperatures, and a normocytic, normochromic anaemia. Two of them were also dyspnoeic, and ...thoracic radiographs revealed a diffuse, unstructured increase in radio-opacity involving all the lung lobes. Examination of Giemsa-stained blood smears and culture of blood monocytes revealed purplish-staining intracytoplasmic inclusions, in monocytes and lymphocytes, which occurred either singly or in aggregates. Electron micrographs of a buffy coat smear from one of the cats revealed round intracytoplasmic inclusions, with electron dense and lucid areas morphometrically similar to those found in other members of the genus Ehrlichia. An attempt to culture chlamydia from one of the cats was unsuccessful. The cats were treated successfully, one with tetracycline hydrochloride and the other two with imidocarb dipropionate.
Pulmonary arterial disease was produced by the placement of flexible polyvinyl chloride threads (similar in size, shape and flexibility to adult female Dirofilaria immitis) in the pulmonary arteries ...of dogs. Several different types of pathological change were apparent ranging from subendothelial oedema and endothelial loss, mild intimal proliferation and thrombus formation to organised fibrous encasement of the threads in areas where they had become impacted in the lumen of the artery. This range of pathological changes is very similar to that produced by D immitis and suggests that the intima of the canine pulmonary artery may react to different insults in a similar way.
dirofilariasis, dogs, hematological parameters show variations according to associated disease status and to presence or absence of microfilariae, regenerative normocytic normochromic anemia usually ...accompanied combination of severe clinical dirofilariasis and an amicrofilaremic (occult) status
Dirofilaria immitis, dogs, difference in diameter between right and left pulmonary artery could be major reason for distribution of filariae and related lesions, effect of angles of deviation of ...arteries as they branch from pulmonary trunk is less clear particularly when considered in relation to curved pathway of blood leaving right auricle
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