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犬子宫蓄脓病因学研究进展 总被引：1，自引：0，他引：1
犬子宫蓄脓是临床上常见的产科疾病,据临床症状可将其分为闭锁型子宫蓄脓和开放型子宫蓄脓。犬子宫蓄脓主要发生在犬发情后期,此期受孕酮浓度增加和雌激素浓度降低的影响,使子宫细胞的免疫水平降低。孕酮浓度增加使子宫内膜增生和腺体分泌增加,同样有利于外来细菌的生长、繁殖。子宫黏膜受到外来细菌的入侵发生病变,子宫分泌物增多。若在子宫颈关闭的情况下,不会有分泌物排出;但若子宫颈处于开放状态,则主要排出恶臭、多血的黏液脓性分泌物。另外,犬子宫蓄脓的发生与犬的年龄、品种可能也有一定的相关性。总之,犬子宫蓄脓是在子宫内膜囊性增生、孕酮对子宫内膜连续刺激和细菌感染等因素作用下的子宫炎性病变表现。 相似文献
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《中国畜牧兽医文摘》2016,(12)
犬子宫蓄脓是发情后期犬子宫腔有脓性积液的一种老年犬多发病,其特征是子宫内膜异常并继发细菌感染。本文通过对苏州市吴江区一9岁吉娃娃病犬进行系统的病史调查,临床检查,血液常规检查、血液生化检查、X射线、B超检查和病原菌的分离鉴定确诊1例由铜绿假单胞菌感染所致犬子宫蓄脓。该犬采用手术切除卵巢子宫治疗,然后基于药物敏感性试验选择抗生素治疗,预后良好。 相似文献
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王春富 《畜牧兽医科技信息》2012,(4):105-107
犬子宫蓄脓是临床上常见的产科疾病,主要发生在犬发情后期,根据临床症状可将其分为开放型子宫蓄脓和闭锁型子宫蓄脓。犬子宫蓄脓是在子宫内膜囊性增生、孕酮浓度增加、雌激素浓度降低和细菌感染等因素作用下子宫发生的炎性病变,该病无特殊疗法,彻底根治必须进行手术治疗。在此对犬子宫蓄脓的病因、诊断及治疗进行综述。 相似文献
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《畜牧与兽医》2021,(5)
通过优化犬子宫内膜基质细胞原代及传代培养方法来提高分离培养细胞纯度和效率,以期为犬子宫内膜相关疾病研究建立模型。采用不同浓度胶原蛋白酶消化、二次网筛过滤及差时消化法,选择细胞消化最适酶浓度,改进纯化方法,观察犬子宫内膜基质细胞的形态学和生长特性,通过免疫荧光染色鉴定分离的细胞并作图像分析,MTT法检测不同时间点的细胞活率。结果:0.5%胶原酶Ⅰ消化1 h,经400目筛网过滤可获得大量活力较好的犬子宫内膜基质细胞,且处于发情期的子宫样本分离获得的基质细胞活力更好;细胞呈长梭形或多角形,平行或涡旋状生长,原代细胞培养2～3 d基本铺满培养瓶瓶底,可进行有限的传代培养,传代细胞生长迅速并维持基本的形态不变,P9代之前细胞增殖旺盛,冷冻前后均有较高的存活率;免疫荧光法鉴定表明,所获细胞波形蛋白抗体染色阳性,角蛋白抗体染色阴性,证明确为子宫内膜基质细胞,纯度可达95%。本试验为研究犬子宫内膜相关疾病提供了理想的细胞模型。 相似文献
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The cystic endometrial hyperplasia and pyometra complex is one of the most common uterine diseases in bitches. The appearance of pharmacological preparations containing anti‐progestagens created new possibilities for pyometra treatment. The aim of this study was to evaluate the curative effect of the anti‐progestagen aglepristone treatment of pyometra in bitches of different ages. Twenty four bitches of different breeds, aged from 0.8 to 9.5 years (21–48 kg) exhibiting clinical pyometra symptoms (two groups – I ≤ 5 years, n = 14 and II >5 years, n = 10) were evaluated. Information about the general reproductive health was collected up to 54 months after anti‐progestagen treatment. Remission of clinical symptoms and return of blood chemistry results and total leucocyte count to referential values were achieved in all cases within 14 days of treatment. Bitches were naturally mated at the first, and when unsuccessful, the second oestrus after treatment. In group I, no recurrence of pyometra symptoms was observed during following cycle(s). Eight bitches (57.1%) had a full‐term pregnancy and the number of newborn pups ranged from 1 to 12. None of the bitches from the group II became pregnant. In conclusion, the basic indication for conservative pharmacological treatment of pyometra is preserving female fertility and obtaining offspring. The important conditions for successful aglepristone treatment are: the young age (up to 5 years) and the lack of detectible ovarian cysts. It seems necessary to mate bitches in the first or second oestrus after finishing treatment. The efficacy of treatment can be measured by the after‐treatment pregnancy rate. 相似文献
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L. Bjurstrm 《Acta veterinaria Scandinavica》1993,34(1):29
A retrospective survey was performed of aerobic bacterial species found in the vagina of 203 bitches with genital disorders, e.g. infertility, vaginitis, pyometra and puppy death. Escherichia coli, beta-hemolytic streptococci, Staphylococcus intermedius and Pasteurella multocida were the species most often isolated. From bitches with pyometra E. coli in pure culture was the most frequent isolate. In contrast, the majority of infertile bitches gave rise to mixed cultures, and no specific bacterial species was consistently associated with infertility. Thus, bacterial sampling from infertile bitches was concluded to be of low diagnostic value. Bacterial species isolated from the bitches having vaginitis were present in pure culture in 26.9% of the samples while nonspecific mixed cultures were obtained from 34.6% of the samples from these bitches. E. coli was the most frequently isolated bacterial species from bitches with dead puppies. However, in such cases it is important to relate the vaginal bacterial findings to autopsy findings and the results of bacteriological cultures of the pups. 相似文献
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A Bartoskova L Adlerova H Kudlackova L Leva R Vitasek M Faldyna 《Reproduction in domestic animals》2009,44(S2):193-195
The concentration of lactoferrin was measured in canine sera from groups of healthy male dogs as well as pregnant and non-pregnant female dogs and was compared with that of bitches with pyometra. Lactoferrin concentrations were higher in bitches with pyometra. The role of elevated lactoferrin concentrations in the suppression of lymphocyte activity was examined in sera from bitches with pyometra in a series of investigations. Although the sera from bitches with pyometra were capable of suppressing lymphocyte activity, lactoferrin was not found to be involved in this action. 相似文献
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GS Maciel RR Uscategui VT de Almeida MEF Oliveira MAR Feliciano WRR Vicente 《Reproduction in domestic animals》2014,49(4):701-704
The occurrence of the pyometra is most common in the first half of the dioestrus when there is decreased cellular immunity associated with increased serum concentration of progesterone in females. The aim of this study was to determine the immunological profile of bitches with pyometra, studying serum levels of IL‐2, IL‐4, IL‐10, IFN‐γ, KC‐like and TNF‐α and comparing them with those of healthy bitches in anoestrus, dioestrus and pregnant. Forty females were divided into four experimental groups: group 1 (G1): with pyometra (n = 10); group 2 (G2): bitches in the second week of gestation (n = 10); group 3 (G3): in anoestrus (n = 10); and group 4 (G4): in dioestrus (n = 10). The serum levels for IL‐2, KC‐like, INF‐γ and TNF‐α were similar for all experimental groups. The values obtained for IL‐10 were found increased (p < 0.001) in animals in dioestrus and pyometra compared with females in anoestrus and pregnant, and the levels of IL‐4 observed were significantly greater (p < 0.001) in bitches with pyometra when compared with others. The cytokine profile in animals with pyometra is similar to bitches in dioestrus for IL‐10 and had increase in IL‐4 for bitches with pyometra, which represents an anti‐inflammatory these cases. This suggests the presence of an immunosuppressive state in both cases, which may explain the propensity of bitches in dioestrus to be affected by pyometra and the severity of the disease on these animals. 相似文献
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In 75 bitches with pyometra single urine samples were examined for gamma-glutamyl transferase (gamma-GT), protein, glucose, specific gravity, bacteria, red blood cells and white blood cells. Serum samples were examined for urea, creatinine, inorganic phosphate and gamma-GT. Biochemical findings were compared with the degree of illness (clinical signs). Twenty one bitches had no signs of renal disease. Seventeen showed only glomerular damage indicated by proteinuria without signs of proximal tubular damage. Thirty seven bitches had increased urinary gamma-GT levels, indicating proximal tubular lesions, which were associated with proteinuria in 35 and renal failure in 16 of them, and worse clinical findings. In all bitches with pyometra serum levels of gamma-GT were comparable to values in control bitches. Glomerular dysfunction seemed to precede proximal tubular lesions, so that gamma-GT-uria in bitches with pyometra was not an early but rather a late indication of a more profound degree of renal dysfunction, that is, proximal tubular renal damage developed after glomerular dysfunction and preceding renal failure. 相似文献
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Escherichia coli is commonly isolated in canine pyometra, but little is known of the virulence factors that may be involved in the precipitation of this disease. The aim of this study was to compare the prevalence of uropathogenic virulence factor (UVF) genes in E. coli isolates from canine pyometra and from feces of healthy bitches to evaluate their role in the pathogenesis of pyometra. E. coli from 23 cases of canine pyometra and from the feces of 24 healthy bitches were analyzed, by polymerase chain reaction, for UVF genes associated with canine and human urinary tract infections (UTIs). The prevalences of UVFs in E. coli from canine pyometra were similar to that in canine and human uropathogenic E. coli. The prevalence of pap was greater (P=0.036) for E. coli from pyometra (52%) than for fecal isolates (21%), and the papGIII allele was present in all pap-containing isolates. The prevalences of genes for alpha-haemolysin and cytotoxic necrotising factor 1 were not significantly higher (P=0.075) in E. coli from pyometra than from feces. The proportion of pyometra strains with >or=3 UVFs was higher (P=0.039) than that of fecal strains, suggesting that possession of >or=3 UVF genes enhances the pathogenicity of the strain. Our findings demonstrate that E. coli associated with canine pyometra are similar to uropathogenic strains, and that operons that encode P fimbriae, alpha-haemolysin and cytotoxic necrotising factor 1 probably enhance the virulence and pathogenicity of the strain in the canine genital tract. 相似文献
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OBJECTIVES: To investigate whether a combination of hysterectomy and antibiotic treatment leads to an improvement of altered haematological and immunological parameters in bitches affected by pyometra. METHODS: Blood samples obtained from 13 bitches affected by pyometra were investigated before hysterectomy and seven days later for a total and differential leucocyte count, activity of neutrophils and lymphocytes, and quantification of total serum immunoglobulins, lysozyme and circulating immune complexes. RESULTS: The parameters most affected included changes in blood profile (leucocytosis because of neutrophilia or leucopenia) and inhibition of lymphocyte activity. Seven days after hysterectomy, all affected parameters returned to normal levels comparable to clinically healthy dogs. CLINICAL SIGNIFICANCE: Application of immunostimulating therapy is not necessary to manage changes in blood cell counts and suppression of lymphocyte activity in bitches with pyometra. Removal of the infected uterus, being the source of infection, leads to improvement. 相似文献
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Pyometra (uterine inflammation with accumulation of pus in the uterus) is regarded as one of the most common illnesses in bitches. The ethiology and pathogenesis are complex with both hormonal and bacterial elements. The bacteria most frequently isolated from the uterine content is Escherichia coli.In this study, 84 E. coli strains from the uteri of 70 bitches suffering from the disease were examined and their DNA-profiles compared by restriction enzyme analysis and pulsed-field gel electrophoresis (PFGE). Through variations in DNA-profiles of the E. coli isolates, this study indicates that pyometra is caused by E. coli originating from the normal flora of the dogs and not by certain clones spread between animals.E. coli strains from the urinary bladder and the uterus of six of the bitches suffering from simultaneous urinary tract infection and pyometra were examined and compared as above. The DNA-profiles of the isolates from each of the six bitches were 100% identical. This study supports the theory suggesting that in cases of simultaneous urinary tract infection and E. coli pyometra, the urinary tract and uterus are infected with the same bacterial strain.To evaluate whether the uterus was infected with a single clone of E. coli or if multiple clones were present, eight to 16 colonies of E. coli isolated from pyometra samples from a further 10 bitches were examined. All bacterial colonies from the culture of the same bitch showed identical DNA-profiles.In 14 of the 70 bitches, two macroscopically different but biochemically identical E. coli colony types were isolated. The two colony types from the same bitch proved to have identical DNA-profiles in 13 cases and almost identical in the remaining bitch. 相似文献
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Maddens B Heiene R Smets P Svensson M Aresu L van der Lugt J Daminet S Meyer E 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2011,25(5):1075-1083
Background: Proteinuria is a feature of pyometra‐associated renal dysfunction, but its prevalence and clinical relevance are not well characterized. Objectives: To define which subset of dogs with pyometra has clinically relevant kidney injury by quantification of proteinuria; light, immunofluorescence, and electron microscopic examination of kidney biopsy specimens; and measurement of urinary biomarkers. Animals: Forty‐seven dogs with pyometra. Ten clinically healthy intact bitches of comparable age. Methods: Prospective study. Routine clinicopathological variables including urinary protein to creatinine ratio (UPC) were analyzed. Validated assays were used to quantify urinary biomarkers for glomerular (urinary albumin, urinary immunoglobulin G, urinary C‐reactive protein, urinary thromboxane B2) and tubular function (urinary retinol‐binding protein, urinary N‐acetyl‐β‐d ‐glucosaminidase). Kidney biopsy specimens from 10 dogs with pyometra and dipstick urine protein concentrations of 2+ or 3+ were collected during ovariohysterectomy. Urinalysis was repeated within 3 weeks after surgery in 9 of the 10 dogs. Results: UPC (median, range) was significantly higher in dogs with pyometra (0.48, 0.05–8.69) compared with healthy bitches (0.08, 0.02–0.16) (P < .01). Twenty‐two of 47 dogs with pyometra had UPC>0.5, 12 had UPC>1.0, and 7 had UPC>2.0. Glomerulosclerosis and tubulointerstitial nephritis were common kidney biopsy findings in proteinuric dogs with pyometra. Dogs with glomerulosclerosis (5/10), either global or focal and segmental, had UPC>1.0 at ovariohysterectomy and afterward. Dogs with structural glomerular and tubular changes mostly had urinary biomarker to creatinine ratios above the 75th percentile. Conclusion: Dogs with pyometra and UPC>1.0 or high ratios of urinary biomarkers appear likely to have clinically relevant renal histologic lesions and require monitoring after ovariohysterectomy. Future studies should evaluate the role of pyometra‐associated pathogenic mechanisms in causing or exacerbating focal and segmental glomerulosclerosis in dogs. 相似文献